CVE-2018-20339 json
Zoho ManageEngine OpManager 12.3 before build 123239 allows XSS in the Notes column of the Alarms section.
published 2018-12-21 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-12897
- cvss
- 6.1
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.4%
- EPSS 2.4% chance of exploitation in 30 days, percentile 84%
- public exploits
- 0
- none known
Summary
Zoho ManageEngine OpManager 12.3 before build 123239 allows XSS in the Notes column of the Alarms section.
Exploit prediction
2.41% chance of exploitation in the next 30 days, higher than 84% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 6.1 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
manageengine.com
/network-monitoring/help/read-me.html
release-notes, vendor-advisory
-
securityfocus.com
/bid/106302
vdb-entry, third-party-advisory
Sources
- CVE List CVE-2018-20339
- NVD CVE-2018-20339
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.