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Before After Image EUVDEUVD-2026-96469

| CVE-2026-62034 HIGH
Cross-site Scripting (XSS) (CWE-79)
2026-10-10 Patchstack GHSA-f5jf-hmc9-f4ww
7.1
CVSS 3.1 · Vendor: Patchstack
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Attack ChainAIDerived

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

  1. Access
    Craft malicious XSS payload
  2. Exploit
    Lure admin/visitor to load it
  3. Execution
    Browser executes injected script
  4. Impact
    Hijack session or perform actions in WordPress

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Output encoding, context-aware escaping
MITRE ATT&CK

2 techniques across 2 tactics: Initial Access, Execution

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

Exploitation Conditions

Exploitation requires the vulnerable Before After Image Comparison - Image Comparison for WP plugin (version 1.1.21 or earlier) to be installed and active on a WordPress site, and requires a victim to interact with an attacker-supplied payload (UI:R) - typically a logged-in administrator or site visitor clicking a crafted link or loading an attacker-influenced page. No authentication is needed to deliver the payload (PR:N), but the mandatory user interaction and the requirement that the specific plugin be present and exposed are the key factors limiting realistic exploitation; sites not running this plugin are unaffected.

Impact

The provided CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L, base 7.1 HIGH) describes a network-reachable, low-complexity, unauthenticated reflected/stored cross-site scripting flaw (CWE-79) that requires victim interaction (UI:R) and crosses a security scope boundary (S:C) with limited confidentiality, integrity, and availability impact. No EPSS score was supplied, the CVE is NOT listed in CISA KEV, and no public proof-of-concept is referenced, so exploitation status is 'no public exploit identified at time of analysis.' Real-world risk is moderate and lower than the 7.1 headline suggests: XSS requires tricking an authenticated administrator or a visitor into loading an attacker-controlled payload, limiting it to targeted rather than automated mass exploitation. The only intelligence source is Patchstack; without EPSS or active-exploitation signals, this is best treated as a routine patch-when-convenient issue for sites running the affected plugin rather than an emergency, though the unauthenticated nature (PR:N) raises its relative priority among XSS bugs.

Exploit ScenarioDerived

An attacker crafts a malicious URL or page input containing JavaScript that the Before After Image Comparison plugin (version 1.1.21 or earlier) reflects or stores without proper sanitization. When a logged-in WordPress administrator or site visitor is lured into loading the payload, the script executes in their browser session, enabling session/cookie theft or actions on their behalf. No authentication is required to deliver the payload (PR:N), but victim interaction is mandatory (UI:R), and no public exploit code has been identified at time of analysis.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 10, 2026

Unauthenticated cross-site scripting in the WordPress plugin Before After Image Comparison - Image Comparison for WP (versions 1.1.21 and earlier) allows a remote attacker to deliver a crafted payload that executes JavaScript in a victim's browser, but only after that victim interacts with the attacker-supplied link or page (CVSS 3.1 base 7.1, HIGH). The vulnerable plugin must be installed and active on the target WordPress site for any exploitation to be possible; sites not running it are unaffected. At the time of analysis there is no confirmed in-the-wild exploitation (not in CISA KEV) and no public exploit code identified, and no EPSS score was supplied, so the practical risk is governed mainly by the mandatory user interaction and the need for the specific plugin to be present and reachable.

RemediationAI

No vendor-released patch is identified in the provided data, so the fixed version cannot be named with confidence even though the affected range ends at 1.1.21 and a later release may contain a fix. The most reliable immediate action is to check the plugin's current version and update to the newest available release as soon as the vendor publishes one, and if the plugin is not essential, deactivate and remove it entirely - doing so removes the attack surface with the only real trade-off being loss of the image comparison feature. Where the plugin must stay active, limit exposure by restricting it to trusted content authors, review any shortcodes, blocks, or query parameters that feed the comparison output, and deploy virtual patching or WAF rules that block script-bearing payloads targeting the plugin's endpoints (trading some false-positive risk on legitimate input). Keep WordPress core, the theme, and all other plugins current, since XSS delivered through a low-privilege vector frequently chains with other weaknesses, and enable plugin auto-updates so a future fixed release is applied without waiting for manual intervention; monitor the Patchstack advisory link above for the official patch version.

Affected VersionsENISA

Before After Image Comparison – Image comparison for WP n/a ≤1.1.21

Affected Packages

euvd before_after_image_comparison_image_comparison_for_wp no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

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

Technical ContextAI · show details

The flaw is a CWE-79 cross-site scripting weakness in a WordPress plugin, as catalogued by Patchstack under the bplugins vendor namespace (CPE cpe:2.3:a:bplugins:before_after_image_comparison_-_image_comparison_for_wp:*:*:*:*:*:*:*:*, i.e. all versions of the plugin including 1.1.21 and earlier). Root cause is improper neutralization of user-controllable input before it is rendered into a page - the plugin's before/after image comparison output does not adequately escape or sanitize attacker-influenced values, so injected markup and script execute in the context of the affected site. The CVSS 3.1 vector AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L confirms remote network delivery at low complexity with no privileges required, a changed security scope (S:C - script executes in the site's origin rather than a sandboxed context), and limited confidentiality, integrity and availability impact. The high UI:R component means the payload must be triggered by a victim, typically a logged-in administrator or a site visitor clicking a crafted link or loading an attacker-influenced page, and the unauth qualifier applies to delivery of the payload rather than to the victim's privilege level.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (Patchstack) PRIMARY 7.1 HIGH
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
vuln.today AI 7.1 HIGH

Unauthenticated network-delivered XSS (AV:N/PR:N) needing victim interaction (UI:R); script executes in a different security context (S:C) with limited C/I/A browser-session impact.

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

Primary rating from Vendor (Patchstack).

CVSS VectorVendor: Patchstack

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

DescriptionCVE.org

Unauthenticated Cross Site Scripting (XSS) in Before After Image Comparison - Image comparison for WP <= 1.1.21 versions.

Executive ViewAI

Why It Matters

A high-severity cross-site scripting flaw in the WordPress plugin 'Before After Image Comparison - Image Comparison for WP' (versions 1.1.21 and earlier) can allow an attacker to execute malicious JavaScript in the browser of a site visitor who interacts with a crafted link or page, potentially exposing session data or enabling actions performed under the site's trust. Only organizations with this specific plugin installed and active on a reachable WordPress site are exposed, and no vendor-released patch is currently available. Leadership should care because closing the exposure requires either taking the plugin offline or depending on interim controls until the vendor ships a fix.

Business Impact: Medium
Compensating Controls

No vendor-released patch identified at time of analysis. Interim mitigations: deactivate or uninstall the plugin where it is not essential; apply WAF or reverse-proxy virtual patching rules to block script-injection payloads against the plugin's parameters; enforce output encoding and a restrictive Content-Security-Policy on affected sites; reduce exposure by limiting untrusted inbound links and link previews; and monitor the vendor advisory daily for a fixed release above version 1.1.21.

Threat Intelligence Overview

EPSS Score
0.2%
Top 93% exploitable
Prevalence
Low
niche single-purpose WordPress image-comparison plugin, limited install base
Data Quality
5 sources
Confidence: Medium

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 HIGH
CISA KEV No
Public POC No
EPSS 0.2%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
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
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
No
Human Impact
Medium
Technical Impact
Partial

Priority Score

36
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +36
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.

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