Security readout for executives and security teams
Plain-English summary
CVE-2026-22714 is a low-severity cross-site scripting issue in the Wikimedia MediaWiki Monaco Skin. It could let an attacker influence content shown in a user’s browser under specific conditions requiring user interaction. The listed impact is limited, but public-facing wikis using affected Monaco Skin versions should still track and remediate it.
Executive priority
Treat as routine but not ignorable. Prioritize public-facing wikis and environments where untrusted users can influence page content. Because severity is low and exploitation is not reported in the provided sources, handle through normal patch management rather than emergency response.
Technical view
The CVE describes improper neutralization during web page generation in MediaWiki Monaco Skin, classified as CWE-79. Affected versions are 1.45, 1.44, 1.43, and 1.39. CVSS 4.0 is 2.3 with network attack vector, low complexity, present attack requirements, no privileges, and user interaction required.
Likely exposure
Exposure is likely limited to MediaWiki deployments that have the Monaco Skin installed and enabled on versions 1.45, 1.44, 1.43, or 1.39. The CVE record lists other versions as unaffected by default, but local packaging or backports should be verified against Wikimedia guidance.
Exploitation context
The CVE is not listed in KEV, and the provided sources do not state active exploitation. The CVSS vector indicates remote reachability, no required attacker privileges, and required user interaction, with low confidentiality and integrity impact and no vulnerable-system availability impact.
Researcher notes
The title mentions XSS, DoS, and config SQL injection, but the CVE description and CWE identify XSS only. Do not assume additional vulnerability classes without vendor confirmation. Fixed versions are not specified in the provided bundle; use the Phabricator and Gerrit references to track authoritative remediation details.
Mitigation direction
- Inventory MediaWiki instances using the Monaco Skin.
- Identify whether Monaco Skin version is 1.45, 1.44, 1.43, or 1.39.
- Review Wikimedia Phabricator task T411126 for vendor context.
- Review the linked Wikimedia Gerrit change for remediation status.
- Apply vendor-provided updates or backported fixes when available.
- If no fix is packaged, consider disabling Monaco Skin until guidance is clear.
Validation and detection
- Confirm Monaco Skin is installed and enabled.
- Record the exact Monaco Skin and MediaWiki versions.
- Check vendor advisories, Phabricator, and Gerrit for fixed revisions.
- Verify deployed code includes the relevant Wikimedia remediation change.
- Review web logs for unusual requests to Monaco Skin pages.
- Retest after updating using approved internal XSS validation procedures.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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-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 lookupCVE-2026-22714 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Low
- CVSS
- 2.3 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
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.
CVSS vector scores
1 official scoreWe 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.
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N——Primary CVE scoreVulnerability scoring details
Base CVSS 4.0 score
2.3LowVector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
Source materials
- CVE List V5 sourceCVE List V5
- https://phabricator.wikimedia.org/T411126CVE reference
- https://gerrit.wikimedia.org/r/q/I00b2e369fa189803380ca7409022a11b670d2500CVE reference
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.