In short
- CVE-2026-77608 is a MEDIUM (CVSS 6.1) vulnerability affecting mediawiki/semantic-media-wiki.
- Chance of exploitation in the next 30 days (EPSS): 0.28%, higher than 20.9% of all vulnerabilities.
- Fix: update to 7.2.0 or later.
Description
Failure mode
The value parameter was reflected back into rendered output and error messaging paths without enough output-context encoding.
Remediation
- The form value is escaped before it is placed back into the input field.
- Derived error messages are also escaped before being rendered into HTML.
Maintenance note
Do not treat error text as trusted just because it originated from validation. Validation output can still be attacker-influenced.
NVD description
Semantic MediaWiki is a free, open-source extension to MediaWiki that lets users store and query data within the wiki's pages. Prior to version 7.2.0, when the `value` parameter was reflected back into rendered output and error messaging paths without enough output-context encoding. Version 7.2.0 fixes the issue.
More vulnerabilities in mediawiki/semantic-media-wiki
See all →Running one of these products? Scan your site to see whether it exposes a vulnerable version.
Scan my site free