CVE-2021-25976
In PiranhaCMS, versions 4.0.0-alpha1 to 9.2.0 are vulnerable to cross-site request forgery (CSRF) when performing various actions supported by the management system, such as deleting a user, deleting a role, editing a post, deleting a media folder etc.,…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.46%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In PiranhaCMS, versions 4.0.0-alpha1 to 9.2.0 are vulnerable to cross-site request forgery (CSRF) when performing various actions supported by the management system, such as deleting a user, deleting a role, editing a post, deleting a media folder etc., when an ID is known.
- CVSS 3.1
- 8.1 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
- EPSS
- 0.46% probability · 39th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-352
- Affected
- dotnetfoundation/piranha cms
- Source
- vulnerabilitylab@mend.io
EPSS 0.5% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/PiranhaCMS/piranha.core/commit/e42abacdd0dd880ce9cf6607efcc24646ac82edaPatch, Third Party Advisory
- https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25976Third Party Advisory
- https://github.com/PiranhaCMS/piranha.core/commit/e42abacdd0dd880ce9cf6607efcc24646ac82edaPatch, Third Party Advisory
- https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25976Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.