VulnSocial

CVE-2021-43444Disclosure(onlyoffice / server)

LOWCVSS 7.5 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

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.

onlyoffice CVEsBack to dashboard
0.0/ 10 priority

Sources & remediation

Vendor / third-party advisories
Weakness type (CWE)
CWE-287

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • server

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • Technical details provided in 1 signal
  • Disclosure: 1 classified signal
  • 1 total mentions across 1 day

Affected systems

Vendors
onlyoffice
Products
server

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-05-01: 1Technical Details · 2026-05-01: 105-01
Signal classification1 categories
Disclosure
1100.0%
Referenced assets1 URL
Full discourse1 post
  • Intigriti@intigriti
    Disclosure

    2️⃣ CVE-2021-43444 to 43449: Exploiting ONLYOFFICE Web Sockets for Unauthenticated Remote Code Execution This researcher discovered an unauthenticated WebSocket in ONLYOFFICE that allowed downloading documents, injecting macros, and achieving SSRF. The default JWT key was literally "secret"! 👀 https://www.lrqa.com/en/cyber-labs/exploiting-onlyoffice-web-sockets-for-unauthenticated-remote-code-execution/

    Post summary

    The post announces that ONLYOFFICE’s default WebSocket is vulnerable to unauthenticated RCE via SSRF and document injection, but offers no PoC or patch information.

    10012586
    210.9K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Apponlyofficeserver---

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