CVE-2026-77610

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Source
https://cve.org/CVERecord?id=CVE-2026-77610
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-77610.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-77610
Aliases
Published
2026-09-18T16:55:01Z
Modified
2026-09-20T11:47:26Z
Severity
  • 6.1 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N CVSS Calculator
Summary
Semantic MediaWiki has a query debug output XSS (`DebugFormatter`)
Details

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, query debug output (format=debug, or the debug request parameter on Special:Ask) is assembled by SMW\Query\DebugFormatter and emitted as raw HTML. Several of its sinks apply no output-context encoding, so attacker-controlled query input is reflected into the page without escaping. On Special:Ask the resulting string is concatenated into the page and sent through OutputPage::addHTML, never through the MediaWiki parser or Sanitizer. No special user right is required; an anonymous request suffices. This is a reflected XSS: the payload is taken from the request and echoed in the same response. Exploitation requires the query condition to target a text/blob-typed property (whose value is re-serialized verbatim); the predefined _txt properties (Text, etc.) that ship on every install satisfy this, so no attacker-created content is needed. Version 7.2.0 patches the issue.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-79"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/77xxx/CVE-2026-77610.json"
}
References

Affected packages

Git / github.com/semanticmediawiki/semanticmediawiki

Affected ranges

Type
GIT
Repo
https://github.com/semanticmediawiki/semanticmediawiki
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
0d11c070bbe64f4425e3ab8be89eefa926dd9e4e
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "7.2.0"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

0.*
0.6
0.7
1.*
1.0
1.0.1
1.1
1.1.1
1.1.2
1.2
1.2.1
1.2.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.5
1.5.1
1.5.2
1.5.3
1.5.4
1.5.5
1.5.6
1.6
1.6.1
1.7
1.7.0.1
1.7.0.2
1.7.1
1.8beta1
1.8beta2
1.9
1.9-RC1
1.9.0.1
1.9.0.2
1.9.1
1.9.1.1
1.9.2
1.9beta1
2.*
2.0-RC1
2.0-RC2
2.0-RC3
2.1.0-RC1
2.3.0
2.3.0-RC1
2.4.0
2.4.0-RC1
2.5.0
2.5.0-rc.1
3.*
3.0.0
3.0.0-rc.1
3.0.0-rc.2
3.1.0
3.1.0-rc.1
3.2.0
3.2.0-rc.1
3.2.0-rc.2
4.*
4.0.0
4.0.1
4.0.2
4.1.0
4.1.1
4.1.2
4.1.3
4.2.0
5.*
5.0.0
5.0.1
5.0.2
5.1.0
6.*
6.0.0
6.0.1
7.*
7.0.0
7.1.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-77610.json"