Medium severity · published Sep 4, 2026
CVE-2026-52772
YesWiki: Bazar form-field templates still apply `|raw('html')` to `field.label` / `field.hint` in attribute and label-body contexts — stored XSS in form renders (sibling class of commit `e6b66aa`)
5.5
CVSS
0.3%
EPSS
No
On KEV
Description
YesWiki is a wiki system written in PHP. Prior to version 4.6.6, Bazar form-field templates still apply |raw('html') to field.label / field.hint in attribute and label-body contexts, resulting stored XSS in form renders. This issue has been patched in version 4.6.6.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 27% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
YE
yeswiki · YesWiki
< 4.6.6 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-52772
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-52772
github.com
https://github.com/YesWiki/yeswiki/commit/5d1a4d07fecb0706f33e5dfbbe6ff5ef1892b2a7
github.com
https://github.com/YesWiki/yeswiki/releases/tag/v4.6.6
github.com
https://github.com/YesWiki/yeswiki/security/advisories/GHSA-xc7j-3g8q-9vh4
More from yeswiki
9.8
CVE-2026-46670
YesWiki: Unauthenticated SQL Injection
9.8
CVE-2026-52778
YesWiki has Unsafe eval() in Formula Calculator - Remote Code Execution (RCE) & Denial of Service (DoS)
9.8
CVE-2025-46348
YesWiki is a wiki system written in PHP
9.8
CVE-2025-46347
YesWiki is a wiki system written in PHP
9.8
CVE-2018-1000641
YesWiki version <= cercopitheque beta 1 contains a PHP Object Injection vulnerability in Unserialising user entered parameter in i18n.inc.php that can result in execution of code,…