CVE-2020-35269
There is a Cross Site Request Forgery (CSRF) vulnerability in Nagios Core 4.2.4.
Nagios Core application version 4.2.4 is vulnerable to Site-Wide Cross-Site Request Forgery (CSRF) in many functions, like adding – deleting for hosts or servers.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
Nagios Core application version 4.2.4 is vulnerable to Site-Wide Cross-Site Request Forgery (CSRF) in many functions, like adding – deleting for hosts or servers.
- Record
CVE-2020-35269- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:P - Weakness
- CWE-352
- Updated
- 2026-11-02
CVE List No score
Nagios Core application version 4.2.4 is vulnerable to Site-Wide Cross-Site Request Forgery (CSRF) in many functions, like adding – deleting for hosts or servers.
- Record
CVE-2020-35269- Updated
- 2026-11-02
EUVDEUVD-2020-22947 No score
Nagios Core application version 4.2.4 is vulnerable to Site-Wide Cross-Site Request Forgery (CSRF) in many functions, like adding – deleting for hosts or servers.
- Record
EUVD-2020-22947- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-8pw4-5frf-g53c No score
There is a Cross Site Request Forgery (CSRF) vulnerability in Nagios Core 4.2.4.
There is a Cross Site Request Forgery (CSRF) vulnerability in Nagios Core 4.2.4.
- Record
GHSA-8pw4-5frf-g53c- Weakness
- CWE-352
- Updated
- 2026-11-02
OSV
Nagios Core application version 4.2.4 is vulnerable to Site-Wide Cross-Site Request Forgery (CSRF) in many functions, like adding – deleting for hosts or servers.
- Record
CVE-2020-35269- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2020-35269
Nagios Core application version 4.2.4 is vulnerable to Site-Wide Cross-Site Request Forgery (CSRF) in many functions, like adding – deleting for hosts or servers.
- Record
DEBIAN-CVE-2020-35269- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2020-35269
Nagios Core application version 4.2.4 is vulnerable to Site-Wide Cross-Site Request Forgery (CSRF) in many functions, like adding – deleting for hosts or servers.
- Record
UBUNTU-CVE-2020-35269- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
nagios4Debian:12 |
All versions, plus listed versions 4.4.6-44.4.6-4+deb12u14.4.6-4+deb12u24.4.6-4.14.5.12+ds-14.5.14+ds-1 |
None known |
nagios4Debian:13 |
All versions, plus listed versions 4.4.6-4.14.4.6-4.1+deb13u14.4.6-4.1+deb13u24.5.12+ds-14.5.14+ds-1 |
None known |
nagios4Debian:14 |
All versions, plus listed versions 4.4.6-4.14.5.12+ds-14.5.14+ds-1 |
None known |
nagios4Ubuntu:20.04:LTS |
All versions, plus listed versions 4.3.4-34.3.4-3ubuntu0.1 |
None known |
nagios4Ubuntu:22.04:LTS |
All versions, plus listed versions 4.4.6-44.4.6-4ubuntu0.22.04.1 |
None known |
nagios4Ubuntu:24.04:LTS |
All versions, plus listed versions 4.4.6-44.4.6-4ubuntu0.24.04.1 |
None known |
nagios4Ubuntu:25.10 |
All versions, plus listed versions 4.4.6-4.1ubuntu1 |
None known |
nagios4Ubuntu:26.10 |
All versions, plus listed versions 4.4.6-4.1ubuntu2 |
None known |
nagios4Ubuntu:26.04:LTS |
All versions, plus listed versions 4.4.6-4.1ubuntu14.4.6-4.1ubuntu2 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-35269 is a high vulnerability (CVSS 8.8) in Nagios Core, published December 23, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.69%, the 85th percentile. No source names a fixed version.
References
gist.github.com/MoSalah20/d1d40b43eafba0bd22ee4cddecad3cbc
nvd.nist.gov/vuln/detail/CVE-2020-35269
github.com/advisories/GHSA-8pw4-5frf-g53c
security-tracker.debian.org/tracker/CVE-2020-35269
ubuntu.com/security/CVE-2020-35269
cve.org/CVERecord?id=CVE-2020-35269