CVE-2021-28254 json
A deserialization vulnerability in the destruct() function of Laravel v8.5.9 allows attackers to execute arbitrary commands.
published 3y ago modified 4mo ago also BIT-laravel-2021-28254 , EUVD-2021-14943
- cvss
- 9.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.3%
- EPSS 1.3% chance of exploitation in 30 days, percentile 71%
- public exploits
- 0
- none known
Summary
A deserialization vulnerability in the destruct() function of Laravel v8.5.9 allows attackers to execute arbitrary commands.
Patch / fix
- bitnami laravel 8.5.10
Is CVE-2021-28254 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- total
- Assessed
- last yr.
Exploit prediction
1.32% chance of exploitation in the next 30 days, higher than 71% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- s1mple-top.github.io https://s1mple-top.github.io/2021/03/09/Laravel8-new-pop-chain-mining-process/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| CNA | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| OSV | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | laravel | >=8.5.9, <8.5.10 |
8.5.10 |
Classification
- Weakness
-
- CWE-502 Deserialization of Untrusted Data
References
-
s1mple-top.github.io
/2021/03/09/Laravel8-new-pop-chain-mining-process/
exploit, third-party-advisory, web
-
nvd.nist.gov
/vuln/detail/CVE-2021-28254
web
Sources
- CVE List CVE-2021-28254
- NVD CVE-2021-28254
- OSV BIT-laravel-2021-28254
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.