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Zephyr Project Manager CVE-2025-12496

MEDIUM
Path Traversal (CWE-22)
2025-12-17 security@wordfence.com
4.9
CVSS 3.1 · Vendor: wordfence
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Authenticate with Custom-level plugin role
  2. Delivery
    Send crafted AJAX request with traversal in `file` param
  3. Exploit
    Bypass path handling in AjaxHandler.php
  4. Execution
    Read arbitrary server files (e.g. wp-config.php)
  5. Impact
    Harvest credentials or pivot via SSRF

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V5 - File Handling Path canonicalization, traversal prevention
MITRE ATT&CK

2 techniques across 2 tactics: Discovery, Collection

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

Requires an authenticated account holding the plugin's 'Custom' level access or above on a site running Zephyr Project Manager <=3.3.203; the attacker sends a traversal payload via the file parameter to the plugin's AJAX handler. Primary impact is arbitrary file read (confidentiality). The SSRF escalation is gated on a specific server configuration - PHP's allow_url_fopen must be enabled - and does not apply otherwise. The PR:H authentication requirement (non-anonymous, elevated plugin role) is the principal limiting factor; no user interaction is needed.

Impact

This is a genuine but modest-priority issue. The provided CVSS 3.1 vector (AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N = 4.9 Medium) describes network-reachable, low-complexity exploitation with no user interaction, but requires elevated privileges (PR:H) - the description clarifies this as 'Custom-level access and above', a plugin-managed role rather than a fully anonymous attacker, which meaningfully limits the population of potential attackers. Impact is confidentiality-only (C:H, I:N, A:N): arbitrary file read that can expose wp-config.php credentials, secrets, or other sensitive server files, with an optional escalation to SSRF only where the server has allow_url_fopen enabled. No EPSS score, no CISA KEV entry, and no public POC were provided in the intelligence, so exploitation status is 'no public exploit identified at time of analysis'. There is no signal conflict: the CVSS network vector is consistent with a WordPress AJAX-handler traversal reachable over HTTP. The main caveat is that the SSRF impact is conditional (allow_url_fopen), and PR:H already gates the primary file-read, so real-world risk skews lower than the raw CWE-22 'arbitrary file read' phrasing suggests.

Exploit ScenarioDerived

An attacker who holds a Zephyr Project Manager 'Custom' (or higher) role on a WordPress site sends a crafted authenticated AJAX request with a path-traversal payload in the file parameter to read wp-config.php or other sensitive files off the server. Where PHP's allow_url_fopen is enabled, the same parameter can be pointed at an internal URL to coerce server-side requests (SSRF). No public exploit code was identified at time of analysis, though the Wordfence advisory pinpoints the vulnerable handler in AjaxHandler.php.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.7% exploitation probability (EPSS)

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AnalysisAIv1 – Sep 28, 2026

Authenticated WordPress users holding the Zephyr Project Manager plugin's 'Custom' role or above can read arbitrary files on the underlying server by passing traversal sequences through the plugin's file parameter, affecting every release up to and including 3.3.203. The primary impact is confidentiality loss from file disclosure (CVSS 4.9, vector AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N), with a secondary escalation to Server-Side Request Forgery on hosts where PHP's allow_url_fopen directive is enabled, allowing outbound requests to attacker-chosen URLs through the same parameter. No public exploit code was identified at time of analysis and there is no confirmed active exploitation, but the elevated 'Custom' role requirement is the main limiting factor; no user interaction is needed and the read primitive is reliable once an attacker has that plugin-level access.

RemediationAI

No vendor-released patch identified at time of analysis, so remediation must combine access reduction, configuration hardening, and monitoring for an updated plugin release through Wordfence's advisory at https://www.wordfence.com/threat-intel/vulnerabilities/id/2b4b0640-d61a-4969-a5c0-d2d709fb56d0?source=cve or the WordPress plugin repository listing. The most effective immediate control is to audit and shrink the set of accounts holding the plugin's 'Custom' role or higher, since the vulnerability requires that capability; revoking it from untrusted or low-trust users removes the attack path entirely, at the cost of those users losing the plugin functionality that role grants. Setting PHP's allow_url_fopen to Off removes the SSRF escalation and limits the issue to local file disclosure; the trade-off is that any theme, plugin, or script relying on URL wrappers with file functions (for example remote file_get_contents calls) will break. A reverse proxy or WAF rule that rejects requests containing encoded or plain traversal sequences (../, %2e%2e%2f, ..%2f) in the file parameter of the plugin's AJAX endpoints provides defense in depth for the path traversal itself, but such rules are signature-based and can be bypassed with unusual encodings, so they must not be treated as a substitute for removing the vulnerable role assignment or disabling the plugin. If the plugin is not essential, deactivating and removing it eliminates both the file-read and SSRF exposure, with the obvious trade-off of losing project-management functionality on the site. Because the read primitive can expose wp-config.php, sites that ran the vulnerable code with untrusted accounts holding 'Custom' access should treat database credentials and WordPress salts as potentially compromised and rotate them after remediation.

Affected ProductsAI

The Zephyr Project Manager plugin for WordPress, all versions up to and including 3.3.203, as distributed through the WordPress plugin repository; the plugin's Trac browser shows the affected code paths in includes/Base/AjaxHandler.php (around line 3506) and includes/Core/Projects.php (around line 1870). Because the description states all versions through 3.3.203 are affected, any site running the plugin at that version or earlier should be considered vulnerable, and no CPE identifiers were supplied in the available data to further scope the affected platform. The Wordfence threat intelligence entry at https://www.wordfence.com/threat-intel/vulnerabilities/id/2b4b0640-d61a-4969-a5c0-d2d709fb56d0?source=cve is the vendor-side advisory reference for this CVE. Sites are affected when the plugin is active and at least one account holds the plugin's 'Custom' access level or higher, since that privilege is what the AJAX handler checks before processing the file parameter.

Affects your stack

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Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

The issue is an instance of CWE-22, Improper Limitation of a Pathname to a Restricted Directory (Path Traversal), in the WordPress plugin Zephyr Project Manager. The plugin registers an AJAX handler in includes/Base/AjaxHandler.php (around line 3506) and reaches project file handling logic in includes/Core/Projects.php (around line 1870); these endpoints accept a file parameter whose value is used in file-system operations without canonicalizing the resolved path or confining it to an intended directory (for example via realpath() plus a base-directory prefix check). Because the value is not normalized, sequences such as ../ let an attacker escape the plugin's intended directory and cause the underlying PHP file-read function to open any path readable by the web server user, which in a typical WordPress deployment includes wp-config.php and therefore database credentials and authentication salts. The same unvalidated parameter also permits URL-style wrappers when the PHP configuration enables allow_url_fopen, which upgrades the file-read primitive to SSRF: the server will perform outbound HTTP/FTP requests to destinations the attacker chooses, enabling internal network probing and interaction with cloud metadata or other internal-only services. The CVSS vector CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N confirms network reachability, low attack complexity, high privilege prerequisite (PR:H), no user interaction, and a confidentiality-only impact with no integrity or availability effect in the rated scope. The relevant upstream source is visible in the WordPress plugin Trac browser at the AjaxHandler.php and Projects.php links provided in the references, and the vulnerability is documented by Wordfence.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (wordfence) PRIMARY 4.9 MEDIUM
AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
vuln.today AI 4.9 MEDIUM

Network-reachable low-complexity AJAX traversal needing an elevated 'Custom'+ role (PR:H); arbitrary file read gives C:H with no integrity or availability impact.

3.1 AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
4.0 AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (wordfence).

CVSS VectorVendor: wordfence

Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

DescriptionCVE.org

The Zephyr Project Manager plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 3.3.203 via the file parameter. This makes it possible for authenticated attackers, with Custom-level access and above, to read the contents of arbitrary files on the server, which can contain sensitive information. On a servers that have allow_url_fopen enabled, this issue allows for Server-Side Request Forgery

Threat Intelligence Overview

EPSS Score
0.7%
Top 49% exploitable
Prevalence
Low
moderately-installed niche WordPress project-management plugin, not ubiquitous
Data Quality
2 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.7%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

25
Low Medium High Critical
KEV: 0
EPSS: +1
CVSS: +24
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Server-Side Request Forgery exploits applications that fetch remote resources based on user-supplied URLs.

Path traversal exploits occur when applications use user-controlled input to construct file system paths without proper validation.

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