CVE-2025-46550: Yeswiki Vulnerable to Unauthenticated Reflected Cross-site Scripting
Description
YesWiki is a wiki system written in PHP. Prior to version 4.5.4, the `/?BazaR` endpoint and `idformulaire` parameter are vulnerable to cross-site scripting. An attacker can use a reflected cross-site scripting attack to steal cookies from an authenticated user by having them click on a malicious link. Stolen cookies allow the attacker to take over the user’s session. This vulnerability may also allow attackers to deface the website or embed malicious content. This issue has been patched in version 4.5.4.
Classification
CVE ID: CVE-2025-46550
CVSS Base Severity: MEDIUM
CVSS Base Score: 4.3
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Problem Types
CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Affected Products
Vendor: YesWiki
Product: yeswiki
Exploit Prediction Scoring System (EPSS)
EPSS Score: 0.03% (probability of being exploited)
EPSS Percentile: 7.21% (scored less or equal to compared to others)
EPSS Date: 2025-05-28 (when was this score calculated)
References
https://nvd.nist.gov/vuln/detail/CVE-2025-46550https://github.com/YesWiki/yeswiki/security/advisories/GHSA-ggqx-43h2-55jp
https://github.com/YesWiki/yeswiki/commit/4e9e51d80cd024ed2ac5c12c820817e6d8c2655a