CVE-2022-23655 json
Missing server signature validation in OctoberCMS
published 2022-02-23 4 y ago modified 2026-06-17 4 mo ago also GHSA-53m6-44rc-h2q5 , EUVD-2022-0829
- cvss
- 4.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 51%
- public exploits
- 0
- none known
Summary
Octobercms is a self-hosted CMS platform based on the Laravel PHP Framework. Affected versions of OctoberCMS did not validate gateway server signatures. As a result non-authoritative gateway servers may be used to exfiltrate user private keys. Users are advised to upgrade their installations to build 474 or v1.1.10. The only known workaround is to manually apply the patch (e3b455ad587282f0fbcb7763c6d9c3d000ca1e6a) which adds server signature validation.
Patch / fix
- packagist october/system 1.0.475, 1.1.11
- octobercms october 1.0.475, 1.1.11
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 18 mo ago
Exploit prediction
0.64% chance of exploitation in the next 30 days, higher than 51% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.8 | CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N |
| NVD | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 2.6 | AV:N/AC:H/Au:N/C:P/I:N/A:N |
| GitHub | 3.1 | 4.8 | CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | october/system | >=1.1.0, <1.1.11 <1.0.475 |
1.1.11 1.0.475 |
Affected products
- octobercms october
Classification
- Weakness
-
- CWE-347 Improper Verification of Cryptographic Signature
References
-
github.com
/octobercms/october/commit/e3b455ad587282f0fbcb7763c6d9c3d000ca1e6a
web, patch, third-party-advisory
-
github.com
/octobercms/october/security/advisories/GHSA-53m6-44rc-h2q5
web, patch, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2022-23655
advisory
-
github.com
/octobercms/october
package
Sources
- CVE List CVE-2022-23655
- GitHub Advisory GHSA-53m6-44rc-h2q5
- NVD CVE-2022-23655
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