CVE-2021-25929 json
Cross-site Scripting in OpenNMS Horizon
published 2021-05-20 5 y ago modified 2026-06-17 4 mo ago also GHSA-jmv4-73v2-pvgc , EUVD-2021-1120
- cvss
- 4.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.0%
- EPSS 1.0% chance of exploitation in 30 days, percentile 63%
- public exploits
- 0
- none known
Summary
In OpenNMS Horizon, versions opennms-1-0-stable through opennms-27.1.0-1; OpenNMS Meridian, versions meridian-foundation-2015.1.0-1 through meridian-foundation-2019.1.18-1; meridian-foundation-2020.1.0-1 through meridian-foundation-2020.1.6-1 are vulnerable to Stored Cross-Site Scripting since there is no validation on the input being sent to the `name` parameter in `noticeWizard` endpoint. Due to this flaw an authenticated attacker could inject arbitrary script and trick other admin users into downloading malicious files.
Patch / fix
- maven org.opennms:opennms 27.1.1
- opennms horizon 27.1.1
- opennms meridian 2019.1.19, 2020.1.7
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 18 mo ago
Exploit prediction
1.02% chance of exploitation in the next 30 days, higher than 63% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- whitesourcesoftware.com https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25929 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 4.8 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N |
| NVD | 3.1 | 4.8 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N |
| CNA | 3.1 | 4.8 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 3.5 | AV:N/AC:M/Au:S/C:N/I:P/A:N |
| GitHub | 3.1 | 4.8 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | org.opennms:opennms | >=1.0.0, <27.1.1 |
27.1.1 |
Affected products
- n/a OpenNMS
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/OpenNMS/opennms/commit/eb08b5ed4c5548f3e941a1f0d0363ae4439fa98c
web, patch, third-party-advisory
-
github.com
/OpenNMS/opennms/commit/66c1f626bf38a7d1a9530b4d68598269ee5245a2
web, patch, third-party-advisory
-
whitesourcesoftware.com
/vulnerability-database/CVE-2021-25929
web, exploit, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2021-25929
advisory
-
github.com
/OpenNMS/opennms
package
Sources
- CVE List CVE-2021-25929
- GitHub Advisory GHSA-jmv4-73v2-pvgc
- NVD CVE-2021-25929
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.