ONLYOFFICE all versions as of 2021-11-08 is affected by Incorrect Access Control.
Priority MEDIUM 41CWE-287Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-287.
Summary
ONLYOFFICE all versions as of 2021-11-08 is affected by Incorrect Access Control. Signed document download URLs can be forged due to a weak default URL signing key.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01223 68th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- 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
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:onlyoffice:server:*:*:*:*:*:*:*:* | up to 7.0.0.49 | Vulnerable | ONLYOFFICE |
- cpe:2.3:a:onlyoffice:server:*:*:*:*:*:*:*:* Versions up to 7.0.0.49 Vulnerable ·ONLYOFFICE
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-43444
- 2026-10-03 Alias added: GHSA-6243-j7h8-mqf5
References
More ONLYOFFICE Server vulnerabilities
- TI-2021-19374 ONLYOFFICE all versions as of 2021-11-08 is affected by Incorrect Access Control. CVSS 3.1HIGH 7.5
- TI-2021-19376 ONLYOFFICE all versions as of 2021-11-08 is vulnerable to Server-Side Request Forgery… CVSS 3.1HIGH 8.1
- TI-2021-19373 ONLYOFFICE all versions as of 2021-11-08 is vulnerable to Cross Site Scripting (XSS). CVSS 3.1MEDIUM 6.1
- TI-2021-19375 ONLYOFFICE all versions as of 2021-11-08 is vulnerable to Improper Input Validation. CVSS 3.1MEDIUM 5.3
- TI-2021-19372 ONLYOFFICE all versions as of 2021-11-08 is affected by Incorrect Access Control. CVSS 3.1CRITICAL 9.8
Sources
- CVE-2021-43444 · CVE Program
- CVE-2021-43444 · NVD
- FIRST EPSS
- GHSA-6243-j7h8-mqf5 · GitHub Advisory Database · CC BY 4.0
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