CVE-2023-30187 Memory corruption in n/a

Critical 9.8 Published 14 Aug 2023 Updated 9 Jul 2026

Remote attackers can execute arbitrary code via crafted JavaScript files due to out-of-bounds memory access in ONLYOFFICE DocumentServer.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2023-30187?

CVE-2023-30187 is a critical memory corruption vulnerability in n/a, published on 14 Aug 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An out of bounds memory access vulnerability in ONLYOFFICE DocumentServer 4.0.3 through 7.3.2 allows remote attackers to run arbitrary code via crafted JavaScript file.

Weakness: CWE-787

Which versions are affected by CVE-2023-30187?

It affects 1 product.

Products include Onlyoffice Document Server.

How do I fix CVE-2023-30187?

No fix has been published for CVE-2023-30187 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2023-30187 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-30187 exists.

Sources

Also known as GHSA-834c-mvqv-5x66.