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CVE-2023-30187

29
FAUCET Score

CVE-2023-30187 is a critical out-of-bounds memory access vulnerability affecting ONLYOFFICE DocumentServer versions 4.0.3 through 7.3.2. This flaw allows unauthenticated remote attackers to execute arbitrary code by supplying a specially crafted JavaScript file. With a CVSS score of 9.8, it presents a severe risk due to its network-based attack vector, low attack complexity, and complete compromise of confidentiality, integrity, and availability. While no public exploit code (Metasploit, Nuclei, ExploitDB) or active exploitation has been observed, and community discussion is minimal, the high CVSS score and FAUCET Risk Score of 81/100 warrant immediate attention.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.0.3, <= 7.3.2CPE matchmatch criteria
cpe:2.3:a:onlyoffice:document_server:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.73%
Probability of exploitation in next 30 days
EPSS Percentile
75.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0173 is in the 63rd percentile among its peer group of 36,833 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

gist.github.com / merrychap/25eba8c4dd97c9e545edad1b8f0eadc2
ExploitPatchThird Party Advisory
github.com / ONLYOFFICE/core/blob/8ca40a44ce47a86168327a46db91253cf6bb205d/DesktopEditor/doctrenderer
Product
github.com / ONLYOFFICE/core/blob/8ca40a44ce47a86168327a46db91253cf6bb205d/DesktopEditor/doctrenderer/embed/NativeControlEmbed.cpp
Not Applicable
github.com / ONLYOFFICE/core/commit/2b6ad83b36afd9845085b536969d366d1d61150a
PatchVendor Advisory
github.com / ONLYOFFICE/DocumentServer
Product