Vulnerability record · CVE-2026-2861 · published 21 February 2026

CVE-2026-2861: Foswiki information exposure vulnerability

Foswiki · Foswiki

A vulnerability was detected in Foswiki up to 2.1.10. The affected element is an unknown function of the component Changes/Viewfile/Oops. The manipulation results in information disclosure. It is possible to launch the attack remotely. The exploit is now public and may be used. Upgrading to version 2.1.11 is sufficient to fix this issue. The patch is identified as 31aeecb58b64/d8ed86b10e46. Upgrading the affected component is recommended.

5.5 CVSS 4.0 Medium EPSS 0.74% · top 47.1% CWE-200 · Information exposureCWE-284 · Improper access control

5.5CVSS 4.0 base score, v2 5.0

0.74%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

9References

17 Jun 2026Last modified by NVD

Description

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Foswiki Foswiki

References

Link	Tags
https://foswiki.org/Tasks/Item15600	Permissions Required
https://foswiki.org/Tasks/Item15601	Permissions Required
https://github.com/foswiki/distro/commit/31aeecb58b64	Patch
https://vuldb.com/?ctiid.347101	Permissions RequiredVDB Entry
https://vuldb.com/?id.347101	Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.753966	Third Party AdvisoryVDB Entry
http://www.openwall.com/lists/oss-security/2026/03/15/1
http://www.openwall.com/lists/oss-security/2026/03/16/1
http://www.openwall.com/lists/oss-security/2026/03/16/3

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-2861), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.