CVE-2026-26000Network attack vector

User redirection via comment-based full-page CSS overlay

Published Feb 12, 2026 · Updated Feb 12, 2026

Clickjacking in affected XWiki Platform releases allows remote attackers to redirect users through CSS injected into comments. Comment rendering accepts CSS as a supported feature, permitting an attacker to turn the full wiki page into a link overlay without an untrusted-domain confirmation. Guest access is sufficient where commenting is open, and a viewer must click the attacker-controlled overlay before redirection occurs.

CVSS severity5.3
Medium
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Clickjacking in affected XWiki Platform releases allows remote attackers to redirect users through CSS injected into comments. Comment rendering accepts CSS as a supported feature, permitting an attacker to turn the full wiki page into a link overlay without an untrusted-domain confirmation. Guest access is sufficient where commenting is open, and a viewer must click the attacker-controlled overlay before redirection occurs.

The record

CVE
CVE-2026-26000
Published
Feb 12, 2026
Updated
Feb 12, 2026
Vendor
CryptPad
Product
XWiki Platform
Classifications
CWE-1021, CAPEC-103, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 12, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 12, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 16.10.13
  2. Affected versionversion=>= 17.0.0-rc-1, < 17.4.6
  3. Affected versionversion=>= 17.5.0, < 17.9.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

CryptPad · XWiki Platformversion=< 16.10.13; version=>= 17.0.0-rc-1, < 17.4.6; version=>= 17.5.0, < 17.9.0

Published CVSS scores

6.1NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
5.3GitHubCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-1021Improper Restriction of Rendered UI Layers or Frames
CAPEC-103Clickjacking
T1204.001User Execution: Malicious Link

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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