CVE-2025-67943
Published: 22 January 2026
Summary
CVE-2025-67943 is a high-severity Cross-site Scripting (CWE-79) vulnerability. Its CVSS base score is 7.1 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 20.3th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-15 (Information Output Filtering).
Deeper analysis
CVE-2025-67943 is an Improper Neutralization of Input During Web Page Generation vulnerability, classified as Reflected Cross-site Scripting (XSS) under CWE-79, affecting the WordPress plugin "My Auctions Allegro Free Edition" (also known as my-auctions-allegro-free-edition) developed by wphocus. The issue impacts all versions from n/a through 3.6.32, as published on 2026-01-22.
The vulnerability carries a CVSS v3.1 base score of 7.1 (AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L), indicating it is exploitable over the network with low attack complexity, no required privileges, but necessitating user interaction such as clicking a malicious link. Remote attackers can deliver crafted payloads that reflect unsanitized input back to victims' browsers, enabling arbitrary script execution in the site's context and achieving low impacts to confidentiality, integrity, and availability with a changed scope.
The Patchstack advisory (https://patchstack.com/database/Wordpress/Plugin/my-auctions-allegro-free-edition/vulnerability/wordpress-my-auctions-allegro-plugin-3-6-32-cross-site-scripting-xss-vulnerability-2?_s_id=cve) documents this XSS vulnerability in the plugin up to version 3.6.32.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-4055
Vulnerability details
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in wphocus My auctions allegro my-auctions-allegro-free-edition allows Reflected XSS.This issue affects My auctions allegro: from n/a through <= 3.6.32.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Reflected XSS in public-facing WordPress plugin directly enables exploitation of the web application (T1190) to achieve arbitrary JavaScript execution in victim browsers (T1059.007).
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly requires validation and sanitization of untrusted input before it is reflected into web page output, blocking the crafted payloads that trigger this reflected XSS.
Requires filtering or encoding of information returned to users, preventing unsanitized attacker-supplied script from executing in the victim's browser context.
Can be configured to detect and block malicious script content delivered via HTTP requests or responses, mitigating exploitation of the plugin's lack of output encoding.