CVE-2026-52370

MEDIUMPre-NVD 6.16.1—
EchelonGraph scoreHIGH confidence

Score 6.1 from GitHub Security Advisory published 2026-08-05. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 6.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
6.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.1Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

A reflected cross-site scripting (XSS) vulnerability in the Forum posting function of O2OA v10 allows attackers to execute arbitrary Javascript in the context of the victim's browser via a crafted URL.

CVSS v3
6.1
EG Score
6.1(high)
EG Risk
28(Track)
EG Risk 28/100SSVC: 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 computed
Severity61% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
9%
KEV
Not listed

Published

August 4, 2026

Last Modified

August 5, 2026

Advisory Details (2)

Auto-updated Aug 5, 2026
No patch confirmed yet.
generic

「O2OA翱途」下载中心_移动OA办公系统_电子政务OA_信创国产化OA

https://www.o2oa.net/download.html
generic

O2OA_V10Current_XSS · Issue #1 · RichardKabuto/CVE-2026-52370 · GitHub

https://github.com/RichardKabuto/CVE-2026-52370/issues/1

Vendor Advisories for CVE-2026-52370(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 23× in last 7d / 50× 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.

  1. 2026-08-21 00:44 UTCEG score recompute
  2. 2026-08-21 00:44 UTCGHSA enrichment
  3. 2026-08-20 22:55 UTCEPSS rescore
  4. 2026-08-20 02:01 UTCEG score recompute
  5. 2026-08-20 02:01 UTCGHSA enrichment
  6. 2026-08-19 17:04 UTCEPSS rescore
  7. 2026-08-19 03:17 UTCEG score recompute
  8. 2026-08-19 03:17 UTCGHSA enrichment
  9. 2026-08-18 13:48 UTCEPSS rescore
  10. 2026-08-18 04:29 UTCEG score recompute
  11. 2026-08-18 04:29 UTCGHSA enrichment
  12. 2026-08-17 13:47 UTCEPSS rescore
  13. 2026-08-17 05:46 UTCEG score recompute
  14. 2026-08-17 05:46 UTCGHSA enrichment
  15. 2026-08-16 14:56 UTCEPSS rescore
  16. 2026-08-16 06:31 UTCEG score recompute
  17. 2026-08-16 06:31 UTCGHSA enrichment
  18. 2026-08-16 02:14 UTCEPSS rescore
  19. 2026-08-15 07:48 UTCEG score recompute
  20. 2026-08-15 07:48 UTCGHSA enrichment
  21. 2026-08-15 01:30 UTCEPSS rescore
  22. 2026-08-14 09:04 UTCEG score recompute
  23. 2026-08-14 09:04 UTCGHSA enrichment
  24. 2026-08-13 22:00 UTCEPSS rescore
  25. 2026-08-13 10:21 UTCEG score recompute
Show 25 more
  1. 2026-08-13 10:21 UTCGHSA enrichment
  2. 2026-08-12 13:51 UTCEPSS rescore
  3. 2026-08-12 11:38 UTCEG score recompute
  4. 2026-08-12 11:38 UTCGHSA enrichment
  5. 2026-08-11 12:54 UTCEG score recompute
  6. 2026-08-11 12:54 UTCGHSA enrichment
  7. 2026-08-11 00:00 UTCEPSS rescore
  8. 2026-08-10 14:11 UTCGHSA enrichment
  9. 2026-08-09 15:27 UTCEG score recompute
  10. 2026-08-09 15:27 UTCGHSA enrichment
  11. 2026-08-09 13:46 UTCEPSS rescore
  12. 2026-08-08 16:44 UTCGHSA enrichment
  13. 2026-08-07 18:00 UTCEG score recompute
  14. 2026-08-07 18:00 UTCGHSA enrichment
  15. 2026-08-06 19:17 UTCEG score recompute
  16. 2026-08-06 19:17 UTCGHSA enrichment
  17. 2026-08-06 13:47 UTCEPSS rescore
  18. 2026-08-05 20:33 UTCGHSA enrichment
  19. 2026-08-05 19:40 UTCEG score recompute▲ 6.10
  20. 2026-08-05 19:40 UTCGHSA enrichment
  21. 2026-08-05 19:40 UTCMITRE cvelistV5CVSS v3 → 6.1 · severity → MEDIUM
  22. 2026-08-05 19:17 UTCEPSS rescore
  23. 2026-08-04 22:31 UTCNVD update
  24. 2026-08-04 21:43 UTCEG score recompute
  25. 2026-08-04 21:40 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-52370?
CVE-2026-52370 is a medium vulnerability published on August 4, 2026. A reflected cross-site scripting (XSS) vulnerability in the Forum posting function of O2OA v10 allows attackers to execute arbitrary Javascript in the context of the victim's browser via a crafted URL.
When was CVE-2026-52370 disclosed?
CVE-2026-52370 was first published in the National Vulnerability Database on August 4, 2026, with the most recent update on August 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-52370 actively exploited?
CVE-2026-52370 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 91.1% of all scored CVEs.
What is the CVSS score of CVE-2026-52370?
CVE-2026-52370 has a CVSS v3.1 base score of 6.1 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-52370?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-52370, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-52370

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