LiveActive security incident?Get immediate response
CVE Record

CVE-2018-25065: Wikimedia mediawiki-extensions-I18nTags Unlike Parser I18nTags_body.php cross site scripting

A vulnerability was found in Wikimedia mediawiki-extensions-I18nTags and classified as problematic. This issue affects some unknown processing of the file I18nTags_body.php of the component Unlike Parser. The manipulation leads to cross site scripting. The attack may be initiated remotely. The identifier of the patch is b4bc3cbbb099eab50cf2b544cf577116f1867b94. It is recommended to apply a patch to fix this issue. The identifier VDB-217445 was assigned to this vulnerability.

MediumCVSS 4Not KEV-listedUpdated
Discuss exposureBack to CVEs
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2018-25065 is a cross-site scripting issue in Wikimedia's MediaWiki I18nTags extension. An authenticated remote user could manipulate I18nTags processing and affect page integrity. The sources identify a patch but do not list affected versions, so exposure must be confirmed locally.

Executive priority

Treat this as a moderate web integrity risk, not an emergency. Patch any MediaWiki site using I18nTags, especially where many authenticated users can submit content or where the wiki is externally reachable.

Technical view

The issue is CWE-79 in mediawiki-extensions-I18nTags, involving I18nTags_body.php and the component described as Unlike Parser. CVSS v2 is 4.0 with network access, low complexity, single authentication, partial integrity impact, and no confidentiality or availability impact.

Likely exposure

Exposure is likely limited to MediaWiki deployments that installed the I18nTags extension and allow authenticated users to reach the affected parsing path. The source bundle does not identify affected versions or CPEs.

Exploitation context

The source bundle says remote initiation is possible and authentication is required. It does not identify public exploit use, and KEV status is false, so active exploitation is not established from the provided evidence.

Researcher notes

Key gaps are affected version ranges, exact trigger conditions, and whether the XSS is stored or reflected. The patch reference is the strongest remediation evidence. Avoid assuming broader MediaWiki exposure without confirming the I18nTags extension is present.

Mitigation direction

  • Apply the referenced Wikimedia patch or a vendor release containing commit b4bc3cbbb099eab50cf2b544cf577116f1867b94.
  • Check Wikimedia guidance for fixed versions, because the sources do not list affected version ranges.
  • Inventory MediaWiki deployments for the I18nTags extension before prioritizing rollout.
  • If patching is delayed, limit untrusted authenticated access to affected I18nTags functionality.

Validation and detection

  • Confirm whether each MediaWiki instance has mediawiki-extensions-I18nTags installed.
  • Compare deployed extension code or release metadata against the referenced patch commit.
  • Review application security tests for XSS coverage around I18nTags parsing behavior.
  • Check whether authenticated users can submit content processed by I18nTags.
Prepared
Confidence
medium
Sources
5

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · medium confidence lookup

CWE-79: User-session and phishing behavior lookup

Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2018-25065 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Medium
CVSS
4 (2.0)
Known Exploited
No
Published

Vector: AV:N/AC:L/Au:S/C:N/I:P/A:N

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
4Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
4CVSS 2.0MediumAV:N/AC:L/Au:S/C:N/I:P/A:N82.9Primary CVE score

Vulnerability scoring details

Base CVSS 2.0 score

4Medium
CVSS 2.0 vector shape for CVE-2018-25065Access VectorAccess ComplexityAuthenticationConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: AV:N/AC:L/Au:S/C:N/I:P/A:N

Access Vector
NetworkAdjacentLocal
Access Complexity
LowMediumHigh
Authentication
NoneSingleMultiple
Confidentiality Impact
CompletePartialNone
Integrity Impact
CompletePartialNone
Availability Impact
CompletePartialNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Wikimediamediawiki-extensions-I18nTagsn/aListed
Weakness

CWE details

CWE-79

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.