ONLYOFFICE Docs (DocumentServer) in versions equal and below 8.3.1 are affected by a reflected cross-site scripting (XSS) issue when opening files via the WOPI protocol. Attackers could inject malicious scripts via crafted HTTP POST requests, which are then reflected in the server's HTML response.
CVE-2025-5301
Score elevated to 6.4 because EPSS predicts 36% probability of exploitation within the next 30 days (top 1.7% of all CVEs). NVD baseline CVSS 6.1 retained for reference. Confidence: see factors.
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 6.1
- EG Score
- 6.4(high)
- EG Risk
- 45(Track)EG Risk 45/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity64% × 45%Exploitation40% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 38%
- EPSS %ILE
- 98%
- KEV
- Not listed
Published
June 12, 2025
Last Modified
April 15, 2026
References (4)
- 551230f0-3615-47bd-b7cc-93e92e730bbfhttps://github.com/ONLYOFFICE/DocumentServer/blob/master/CHANGELOG.md#832
- 551230f0-3615-47bd-b7cc-93e92e730bbfhttps://r.sec-consult.com/onlyoffice
- af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2025/Jun/18
- 134c704f-9b21-4f2e-91b3-4a467353bcc0https://sec-consult.com/vulnerability-lab/advisory/reflected-cross-site-scripting-in-onlyoffice-docs-documentserver/
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 6× in last 7d / 38× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 121 total refreshes for this CVE.
- 2026-08-07 16:26 UTCEPSS rescore
- 2026-08-06 13:46 UTCEPSS rescore
- 2026-08-05 19:17 UTCEPSS rescore
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- 2026-07-28 15:35 UTCEPSS rescore
- 2026-07-27 18:54 UTCOSV refresh
- 2026-07-27 14:12 UTCEPSS rescore
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- 2026-07-23 14:18 UTCEPSS rescore
- 2026-07-23 14:18 UTCEPSS rescore
- 2026-07-23 02:58 UTCEG score recompute▲ 0.30
- 2026-07-22 14:08 UTCEPSS rescore
- 2026-07-21 15:24 UTCEPSS rescore
- 2026-07-20 17:08 UTCEPSS rescore
- 2026-07-19 14:30 UTCEPSS rescore
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- 2026-07-18 10:04 UTCEPSS rescore
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- 2026-07-12 05:46 UTCEPSS rescore
- 2026-07-11 08:27 UTCEPSS rescore
- 2026-07-10 11:28 UTCOSV refresh
- 2026-07-09 19:09 UTCEPSS rescore
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- 2026-06-25 13:49 UTCEPSS rescore
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- 2026-06-15 17:48 UTCEPSS rescore
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- 2026-06-12 23:11 UTCEPSS rescore
- 2026-06-11 14:00 UTCEPSS rescore
- 2026-06-10 22:18 UTCEPSS rescore
- 2026-06-10 22:18 UTCEPSS rescore
- 2026-06-10 13:22 UTCEPSS rescore
- 2026-06-08 14:17 UTCEPSS rescore
- 2026-06-08 14:16 UTCEPSS rescore
- 2026-06-07 15:24 UTCEPSS rescore
- 2026-06-07 15:24 UTCEPSS rescore
- 2026-06-06 13:47 UTCEPSS rescore
- 2026-06-06 13:47 UTCEPSS rescore
- 2026-06-05 22:46 UTCEPSS rescore
- 2026-06-05 22:46 UTCEPSS rescore
- 2026-06-05 06:10 UTCEPSS rescore
- 2026-06-05 06:10 UTCEPSS rescore
- 2026-06-04 13:12 UTCEPSS rescore
- 2026-06-04 13:12 UTCEPSS rescore
- 2026-06-02 20:12 UTCEPSS rescore
- 2026-06-02 20:12 UTCEPSS rescore
- 2026-06-01 13:51 UTCEPSS rescore
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- 2026-05-29 13:44 UTCEPSS rescore
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- 2026-05-28 13:44 UTCEPSS rescore
- 2026-05-28 13:44 UTCEPSS rescore
- 2026-05-28 13:44 UTCEPSS rescore
- 2026-05-27 13:40 UTCEPSS rescore
- 2026-05-27 13:40 UTCEPSS rescore
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- 2026-05-27 13:40 UTCEPSS rescore
- 2026-05-26 13:44 UTCEPSS rescore
- 2026-05-26 13:43 UTCEPSS rescore
Publicly available exploits
(1 reference)Working exploit code is in the public domain. Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- Nucleihttp/cves/2025/CVE-2025-5301.yamlFirst seen Jan 1, 2025
ONLYOFFICE Docs (DocumentServer) - Reflected Cross-Site Scripting
Open source ↗
Related CVEs(same CWE)
Frequently asked(5)
What is CVE-2025-5301?
When was CVE-2025-5301 disclosed?
Is CVE-2025-5301 actively exploited?
What is the CVSS score of CVE-2025-5301?
How do I remediate CVE-2025-5301?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2025-5301
Is Your Infrastructure Affected by CVE-2025-5301?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.