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Timetics EUVDEUVD-2026-41285

| CVE-2026-57674 HIGH
Cross-site Scripting (XSS) (CWE-79)
2026-07-02 Patchstack GHSA-pqph-qhf9-37xc
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 link targeting Timetics input
  2. Delivery
    Deliver link to WordPress user via phishing
  3. Exploit
    Victim loads page, input reflected unsanitized
  4. Execution
    Injected JavaScript executes in victim browser
  5. Impact
    Steal session cookie or perform admin actions

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 no authentication (PR:N) but does require victim interaction (UI:R): the attacker must induce a user - ideally a logged-in WordPress administrator or staff member - to click a crafted link or load a page containing the injected payload targeting the Timetics plugin (versions ≤ 1.0.58). The vulnerable code path lives in the Timetics plugin, so the plugin must be installed and its affected input/endpoint reachable; sites not running Timetics, or running a version newer than 1.0.58, are unaffected. Limiting factors: the mandatory user-interaction step prevents fully automated mass exploitation, and impact scales with the privilege of the victim who triggers the payload.

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 flaw that requires user interaction, consistent with XSS rather than direct server compromise. The user-interaction requirement (UI:R) meaningfully limits automatability: an attacker must lure a victim to crafted content. No EPSS probability was supplied, the CVE is not in CISA KEV, and no proof-of-concept is referenced, so there is no evidence of active or widespread exploitation. Net assessment: a genuine but moderate-priority issue whose realistic impact is session/credential theft or forged admin actions against WordPress users, gated by social engineering rather than mass automation. No signals conflict, but the missing EPSS and unknown POC status leave exploitation likelihood only partially characterized.

Exploit ScenarioDerived

An attacker crafts a URL or booking-form input containing a malicious JavaScript payload aimed at a Timetics endpoint and delivers it to a site administrator or visitor via email, chat, or a malicious page. When the victim opens the link, the unsanitized input is rendered in their browser and the script executes, stealing session cookies, performing actions as the logged-in user, or redirecting to a phishing page. No proof-of-concept is referenced, and exploitation depends on the victim interacting with the crafted content (UI:R).

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 – Jul 02, 2026

Cross-Site Scripting in the Timetics WordPress appointment-booking plugin (by Arraytics) affects all versions up to and including 1.0.58, allowing unauthenticated remote attackers to inject script that executes in a victim's browser after the victim interacts with a crafted link or page. Because the CVSS scope is changed (S:C), a successful injection can affect resources beyond the vulnerable component, such as the browser session of a logged-in administrator. There is no public exploit identified at time of analysis, the CVE is not listed in CISA KEV, and no EPSS score was provided.

RemediationAI

Update the Timetics plugin to a version later than 1.0.58 once the vendor publishes a patched release; the input data does not specify an exact fixed version, so administrators should consult the Patchstack advisory (https://patchstack.com/database/wordpress/plugin/timetics/vulnerability/wordpress-timetics-plugin-1-0-58-cross-site-scripting-xss-vulnerability?_s_id=cve) and the Arraytics changelog to confirm the corrected version before deploying. Until a confirmed patch is applied, deploy a WAF/virtual-patching rule (for example Patchstack or Wordfence) to filter script-injection patterns on Timetics booking endpoints, and restrict or disable public access to the plugin's front-end booking pages if they are not business-critical - noting this breaks customer-facing self-service booking. Enforcing a restrictive Content-Security-Policy that disallows inline script execution further reduces reflected-payload impact, at the cost of potentially breaking legitimate inline scripts on the site.

Affected VersionsENISA

Timetics n/a ≤1.0.58

Affected Packages

euvd timetics 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

Timetics is a WordPress plugin (vendor Arraytics, CPE cpe:2.3:a:arraytics:timetics) used for appointment scheduling and booking. The flaw is classified as CWE-79 (Improper Neutralization of Input During Web Page Generation), meaning user-controllable input is rendered into an HTML response without adequate output encoding or sanitization. In Patchstack-reported WordPress plugin cases this typically stems from a plugin endpoint or booking parameter that echoes attacker input into a page. The changed scope (S:C) in the CVSS vector indicates the injected script executes in a security context different from the vulnerable component - the browser DOM of any user who loads the poisoned content.

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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-reachable XSS (AV:N/PR:N/AC:L) requiring victim interaction (UI:R); script runs in a different context (S:C) with limited browser-session confidentiality/integrity/availability impact (C:L/I:L/A:L).

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:N/VI:N/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 Timetics <= 1.0.58 versions.

Executive ViewAI

Why It Matters

The Timetics WordPress appointment-booking plugin (versions ≤1.0.58) contains a cross-site scripting vulnerability enabling unauthenticated attackers to inject malicious code into administrator and user browsers, potentially enabling session hijacking, credential theft, and website defacement. Organizations relying on this plugin for scheduling functionality face immediate risk to administrative access and sensitive business data.

Business Impact: High
Compensating Controls

No vendor-released patch identified at time of analysis. Interim mitigations: Immediately disable or remove Timetics plugin; deploy Web Application Firewall with XSS payload detection; implement Content Security Policy (CSP) headers to restrict script execution; restrict WordPress admin interface access to known IP ranges via firewall or network controls; enable logging and alerting on administrator login anomalies and session activity; enforce multi-factor authentication on all administrative accounts; monitor web server error logs for XSS-related malformed requests.

Threat Intelligence Overview

EPSS Score
0.2%
Top 91% exploitable
Prevalence
Low
niche WordPress appointment-booking plugin, limited install base
Data Quality
6 sources
Confidence: High

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
High
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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