An issue in the SpreadSheetPlugin component of Foswiki v2.1.7 and below allows attackers…
Priority HIGH 72CWE-22Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-22 and the CVSS impact.
Summary
An issue in the SpreadSheetPlugin component of Foswiki v2.1.7 and below allows attackers to execute a directory traversal.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01121 66th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-33756
- 2026-10-03 Alias added: GHSA-7966-q28j-7rvr
References
More Foswiki vulnerabilities
- TI-2026-02457 Foswiki Changes/Viewfile/Oops information disclosure CVSS 4.0MEDIUM 6.9
- TI-2012-05141 The localization functionality in TWiki before 5.1.3, and Foswiki 1.0.x through 1.0.10… CVSS 2.0MEDIUM 5.0
- TI-2013-01463 Foswiki before 1.1.8 contains a code injection vulnerability in the MAKETEXT macro. CVSS 3.1CRITICAL 9.8
- TI-2023-10259 Insufficient parameter validation in the Foswiki::Sandbox component of Foswiki v2.1.7 and… CVSS 3.1HIGH 7.5
- TI-2010-03968 UI/Manage.pm in Foswiki 1.1.0 and 1.1.1 allows remote authenticated users to gain… CVSS 2.0MEDIUM 6.5
- TI-2009-01358 Cross-site request forgery (CSRF) vulnerability in Foswiki before 1.0.5 allows remote… CVSS 2.0MEDIUM 6.8
Sources
- CVE-2023-33756 · CVE Program
- CVE-2023-33756 · NVD
- FIRST EPSS
- GHSA-7966-q28j-7rvr · GitHub Advisory Database · CC BY 4.0
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