YesWiki Archived Revision - Cross-Site Scripting
CVE-2026-52773
Verified
Description
YesWiki's archived-revision view reflects the time GET parameter into a hidden HTML input in handlers/page/show.php without escaping. Because MySQL coerces malformed DATETIME strings, an attacker can append an XSS payload after a valid revision timestamp.
Severity
Medium
CVSS Score
6.1
Exploit Probability
1%
Affected Product
yeswiki
Published Date
July 15, 2026
Template Author
0x_akoko
CVE-2026-52773.yaml
6.1Score
CVSS Metrics
CVSS Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVE ID:
cve-2026-52773
CWE ID:
cwe-79
Remediation Steps
Upgrade YesWiki to version 4.6.6 or later where output encoding is applied.