CVE-2025-40915 json
Mojolicious::Plugin::CSRF 1.03 for Perl uses a weak random number source for generating CSRF tokens
published last yr. modified 4mo ago also EUVD-2025-18132
- cvss
- 7.0
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 21%
- public exploits
- 0
- none known
Summary
Mojolicious::Plugin::CSRF 1.03 for Perl uses a weak random number source for generating CSRF tokens.
That version of the module generates tokens as an MD5 of the process id, the current time, and a single call to the built-in rand() function.
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- last yr.
Exploit prediction
0.29% chance of exploitation in the next 30 days, higher than 21% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 7.0 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L |
| CNA | 3.1 | 7.0 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L |
Affected products
- GRYPHON Mojolicious::Plugin::CSRF
Classification
- Weakness
-
- CWE-338 Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
References
Sources
- CVE List CVE-2025-40915
- NVD CVE-2025-40915
Fencer Intel 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.