HOMEVULNERABILITIESCVE-2023-30187
CRITICAL

CVE-2023-30187

CWE-787Published: August 14, 2023· Updated: Jul 9, 2026

9.8
CVSS v3.1

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.

NVD Source

Technical Analysis

CVE-2023-30187 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

onlyoffice1 product(s)
document server
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://gist.github.com/merrychap/25eba8c4dd97c9e545edad1b8f0eadc2
PATCHhttps://github.com/ONLYOFFICE/core/commit/2b6ad83b36afd9845085b536969d366d1d61150a
PATCHhttps://gist.github.com/merrychap/25eba8c4dd97c9e545edad1b8f0eadc2
PATCHhttps://github.com/ONLYOFFICE/core/commit/2b6ad83b36afd9845085b536969d366d1d61150a

All References (10)

→
https://gist.github.com/merrychap/25eba8c4dd97c9e545edad1b8f0eadc2Exploit · Patch · Third Party Advisory
→
https://github.com/ONLYOFFICE/DocumentServerProduct
→
https://github.com/ONLYOFFICE/core/blob/8ca40a44ce47a86168327a46db91253cf6bb205d/DesktopEditor/doctrenderer/Product
→
https://github.com/ONLYOFFICE/core/blob/8ca40a44ce47a86168327a46db91253cf6bb205d/DesktopEditor/doctrenderer/embed/NativeControlEmbed.cpp#L110Not Applicable
→
https://github.com/ONLYOFFICE/core/commit/2b6ad83b36afd9845085b536969d366d1d61150aPatch · Vendor Advisory
→
https://gist.github.com/merrychap/25eba8c4dd97c9e545edad1b8f0eadc2Exploit · Patch · Third Party Advisory
→
https://github.com/ONLYOFFICE/DocumentServerProduct
→
https://github.com/ONLYOFFICE/core/blob/8ca40a44ce47a86168327a46db91253cf6bb205d/DesktopEditor/doctrenderer/Product
→
https://github.com/ONLYOFFICE/core/blob/8ca40a44ce47a86168327a46db91253cf6bb205d/DesktopEditor/doctrenderer/embed/NativeControlEmbed.cpp#L110Not Applicable
→
https://github.com/ONLYOFFICE/core/commit/2b6ad83b36afd9845085b536969d366d1d61150aPatch · Vendor Advisory

Quick Facts

CVE IDCVE-2023-30187
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-787
CISA KEVNo
Affected1 vendor(s)
PublishedAug 14, 2023

Related CVEs (CWE-787)

CVE-2018-2913
10.0
CVE-2015-5098
10.0
CVE-2015-5105
10.0
CVE-2016-9343
10.0
CVE-2015-5096
10.0
CVE-2004-0574
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2023-30187 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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