Home/CVE/A vulnerability was detected in Foswiki up to 2.1.10. The affected element is an unknown function of the component Chang
CVE

CVE-2026-2861

A vulnerability was detected in Foswiki up to 2.1.10. The affected element is an unknown function of the component Chang

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.

MEDIUM · CVSS 5.3 EPSS 0.00092
Schedule remediation
  • SSVC automatable: yes - attacks can be scripted at scale
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
CWE-284Improper Access Control
▤

Affected Products & Versions

1
foswiki< 2.1.11
▣

Scoring & Timeline

5.3
MEDIUM · CVSS v3.1 · cna@vuldb.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD21 Feb 2026 · 06:17 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
SSVC triage · cisa-vulnrichment
Exploitation
poc
Automatable
yes
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
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References & Sources

9
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://foswiki.org/Tasks/Item15600Permissions Required
https://foswiki.org/Tasks/Item15601Permissions Required
https://github.com/foswiki/distro/commit/31aeecb58b64Patch
https://vuldb.com/?ctiid.347101Permissions RequiredVDB Entry
https://vuldb.com/?id.347101Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.753966Third Party AdvisoryVDB Entry
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