CVE-2026-52854

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Source
https://cve.org/CVERecord?id=CVE-2026-52854
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-52854.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-52854
Aliases
Downstream
Published
2026-08-18T21:32:09.253Z
Modified
2026-08-21T03:30:07.593189680Z
Severity
  • 8.6 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L CVSS Calculator
Summary
mediawiki/maps: Stored XSS through the overlays parameter in the display_map parser function
Details

Maps is a MediaWiki extension that enables visualization of geographic data through dynamic embedded maps. Prior to version 12.1.3, the display_map parser function in the Leaflet service accepts attacker-controlled HTML in the overlays parameter, and resources/leaflet/jquery.leaflet.js uses the overlay name as a Leaflet layer-control label without escaping it. A wiki user with the edit permission can store malicious wikitext that causes script execution when another user previews or views the affected map. The script executes in the viewing user's browser session and can access data or perform actions available to that user. This issue is fixed in version 12.1.3.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-79",
        "CWE-80"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52854.json"
}
References

Affected packages

Git / github.com/professionalwiki/maps

Affected ranges

Type
GIT
Repo
https://github.com/professionalwiki/maps
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
737a993fc2f40499e9bb22198fd1d56c25613806
Fixed
38b2f1284aeff8c70338aa0639110669a365dba6
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "12.1.3"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

0.*
0.7
1.*
1.0.5
10.*
10.0.0
10.1.0
10.1.1
10.2.0
10.3.0
11.*
11.0.0
11.0.1
12.*
12.0.0
12.1.0
12.1.1
12.1.2
2.*
2.0rc1
3.*
3.0
3.0-RC2
3.0.1
3.1
3.2.0
3.2.1
3.2.2
3.2.3
3.2.4
3.3.0
3.4.0
3.4.1
3.5.0
3.6.0
3.7.0
3.8.0
3.8.1
4.*
4.0.0
4.0.0-RC1
4.0.1
4.0.2
4.0.4
4.0.5
4.1.0
4.2.0
4.2.1
4.3.0
4.4.0
5.*
5.0.0
5.0.1
5.0.2
5.1.0
5.2.0
5.3.0
5.4.0
5.5.0
5.5.1
5.5.2
5.5.3
5.5.4
5.5.5
5.6.0
6.*
6.0.0
6.0.1
6.0.2
6.0.3
6.0.4
6.1.0
6.2.0
6.2.1
6.2.2
6.3.0
7.*
7.0.0
7.1.0
7.10.0
7.11.0
7.12.0
7.12.1
7.12.2
7.13.0
7.14.0
7.15.0
7.15.1
7.15.2
7.15.3
7.15.4
7.15.5
7.15.6
7.16.0
7.17.0
7.17.1
7.17.2
7.18.0
7.19.0
7.2.0
7.20.1
7.3.0
7.3.1
7.3.2
7.3.3
7.4.0
7.4.1
7.5.0
7.6.0
7.7.0
7.8.0
7.8.1
7.8.2
7.8.3
7.9.0
8.*
8.0.0
9.*
9.0.0
9.0.1
9.0.2
9.0.3
9.0.4
9.0.5
9.0.6
9.0.7

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-52854.json"