Security readout for executives and security teams
CVE-2026-2861 is an information disclosure issue in Foswiki’s Changes/Viewfile/Oops component. A remote, unauthenticated attacker may be able to access information that should not be exposed. Public exploit information is reported, but the provided sources do not show confirmed active exploitation. Upgrading to Foswiki 2.1.11 is identified as the fix. Organizations running Foswiki 2.1.10 or earlier are likely exposed, especially if internet-accessible. The source bundle contains an affected list that also names 2.1.11, but the description says 2.1.11 fixes the issue; treat vendor guidance as authoritative. Prioritize remediation for externally accessible Foswiki systems because exploitation is remote and public exploit information exists. This is not currently evidenced as mass exploited in the provided sources, but information disclosure can expose sensitive wiki content or metadata. Mitigation focus: Upgrade affected Foswiki deployments to version 2.1.11.; Review Foswiki task pages and commit references for vendor-specific guidance.; Restrict internet exposure of Foswiki where business requirements allow..
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-200: Information exposure and cloud metadata lookup
Information exposure and SSRF weaknesses can make discovery, cloud metadata, and credential material review relevant. 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 lookupCWE-284: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. 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-2026-2861 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
- Medium
- CVSS
- 6.9 (4.0)
- Known Exploited
- No
- Published
Vector: 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
CNA and ADP enrichment extracted from CVE v5
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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:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P——Primary CVE scoreVulnerability scoring details
Base CVSS 4.0 score
6.9MediumVector: 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
Source materials
- CVE List V5 sourceCVE List V5
- VDB-347101 | Foswiki Changes/Viewfile/Oops information disclosureCVE reference · vdb-entry
- VDB-347101 | CTI Indicators (IOB, IOC, TTP)CVE reference · signature, permissions-required
- Submit #753966 | Foswiki 2.1.10 and before Information DisclosureCVE reference · third-party-advisory
- https://foswiki.org/Tasks/Item15600CVE reference · related
- https://foswiki.org/Tasks/Item15601CVE reference · related
- https://github.com/foswiki/distro/commit/31aeecb58b64CVE reference · patch
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.
Exposure of Sensitive Information to an Unauthorized Actor
Exposure of Sensitive Information to an Unauthorized Actor represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
Improper Access Control
Improper Access Control represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.