Vulnerability-Lookup

CVE-2026-0671 (GCVE-0-2026-0671)

Vulnerability from cvelistv5 – Published: 2026-01-08 16:21 – Updated: 2026-01-08 20:13

Title

Multiple stored i18n/message-key XSSes in UploadWizard

Summary

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki - UploadWizard extension allows Cross-Site Scripting (XSS).This issue affects MediaWiki - UploadWizard extension: 1.45, 1.44, 1.43, 1.39.

Severity

6.1 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-01-08 20:13 UTC

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')

Assigner

wikimedia-foundation mitre root

References

2 references

URL	Tags
https://phabricator.wikimedia.org/T407157
https://gerrit.wikimedia.org/r/q/I16de2211594ea9a…

Impacted products

1 product

Vendor	Product	Version	CPE status
Wikimedia Foundation	MediaWiki - UploadWizard extension	Affected: 1.45 Affected: 1.44 Affected: 1.43 Affected: 1.39	guessed

Credits

A_smart_kitten

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-0671

Vulnerability from fkie_nvd - Published: 2026-01-08 17:15 - Updated: 2026-06-17 10:11

Severity

6.1 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Summary

References

	URL	Tags
	c4f26cc8-17ff-4c99-b5e2-38fc1793eacc	https://gerrit.wikimedia.org/r/q/I16de2211594ea9a686868ad7789f9879bf981fa1	Patch
	c4f26cc8-17ff-4c99-b5e2-38fc1793eacc	https://phabricator.wikimedia.org/T407157	Exploit, Issue Tracking, Vendor Advisory

Impacted products

Vendor	Product	Version
wikimedia	mediawiki-extensions-uploadwizard	1.39
wikimedia	mediawiki-extensions-uploadwizard	1.43
wikimedia	mediawiki-extensions-uploadwizard	1.44
wikimedia	mediawiki-extensions-uploadwizard	1.45

JSON

To clipboard

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          "product": "MediaWiki - UploadWizard extension",
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GHSA-79P6-J87F-JQP9

Vulnerability from github – Published: 2026-01-08 18:30 – Updated: 2026-01-08 21:30

Details

Severity

6.1 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-0671"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-01-08T17:15:50Z",
    "severity": "MODERATE"
  },
  "details": "Improper Neutralization of Input During Web Page Generation (XSS or \u0027Cross-site Scripting\u0027) vulnerability in Wikimedia Foundation MediaWiki - UploadWizard extension allows Cross-Site Scripting (XSS).This issue affects MediaWiki - UploadWizard extension: 1.45, 1.44, 1.43, 1.39.",
  "id": "GHSA-79p6-j87f-jqp9",
  "modified": "2026-01-08T21:30:34Z",
  "published": "2026-01-08T18:30:50Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-0671"
    },
    {
      "type": "WEB",
      "url": "https://gerrit.wikimedia.org/r/q/I16de2211594ea9a686868ad7789f9879bf981fa1"
    },
    {
      "type": "WEB",
      "url": "https://phabricator.wikimedia.org/T407157"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

WID-SEC-W-2026-0053

Vulnerability from csaf_certbund - Published: 2026-01-08 23:00 - Updated: 2026-01-11 23:00

Summary

MediaWiki: Mehrere Schwachstellen

Severity

Mittel

Scope

5 vulnerabilities in this advisory, including CVE-2026-0671.

CVE-2026-0671

Known affected: 1 product

Open the full advisory

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-0671 (GCVE-0-2026-0671)

FKIE_CVE-2026-0671

GHSA-79P6-J87F-JQP9

WID-SEC-W-2026-0053

Tags

Sightings

Nomenclature

Related by attack behaviour