CVE-2026-52773Medium· 6.1▾ TwilightPoC availableYesWiki is a wiki system written in PHP. From version 4.1.0 to before version 4.6.6, YesWiki's archived-revision view reflects the time GET parameter into a hidden HTML input in handlers/page/show.php without escaping. Because MySQL coer…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 33.6 · likelihood 0.1 · exploitation 12
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
Public exploit / PoC code seen in 1 source. Availability, not in-the-wild use.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Sep 5.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.5%
Last analysed / modified upstream
Nuclei ×1
YesWiki is a wiki system written in PHP. From version 4.1.0 to before version 4.6.6, 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 HTML or JavaScript to a valid archived revision timestamp, still load that archived revision, and execute arbitrary JavaScript in the victim's browser. The vulnerable form is only rendered when the victim can both read and edit the target page. In restricted deployments this requires a victim with read and write access to that page. On a default doryphore 4.6.5 install, public pages such as PagePrincipale were editable anonymously during validation, so the issue can also affect unauthenticated visitors in that configuration. This issue has been patched in version 4.6.6.
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Affected packages:
yeswiki/yeswiki >= 4.1.0, < 4.6.6Patched in:
yeswiki/yeswiki 4.6.6Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-52774Medium· 6.1YesWiki is a wiki system written in PHP
CVE-2026-52762High· 7.1YesWiki is a wiki system written in PHP
CVE-2026-52766Critical· 9.1YesWiki is a wiki system written in PHP
CVE-2026-52767High· 8.2YesWiki is a wiki system written in PHP
CVE-2026-52769High· 8.3YesWiki is a wiki system written in PHP
CVE-2026-52770High· 7.5YesWiki is a wiki system written in PHP