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CWE

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CVE-2026-2861

Published: Feb 21, 2026

Modified: Mar 16, 2026

PUBLISHED

CVSS v3.1

5.3

MEDIUM

Description

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.

Vendor	Product	Versions
n/a	Foswiki	affected `2.1.0` affected `2.1.1` affected `2.1.2` affected `2.1.3` affected `2.1.4` +7 more versions

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

References

VDB-347101 | Foswiki Changes/Viewfile/Oops information disclosure

vdb-entry

VDB-347101 | CTI Indicators (IOB, IOC, TTP)

signature

permissions-required

Submit #753966 | Foswiki 2.1.10 and before Information Disclosure

third-party-advisory

https://foswiki.org/Tasks/Item15600

related

https://foswiki.org/Tasks/Item15601

related

https://github.com/foswiki/distro/commit/31aeecb58b64

patch

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