TI-2022-07707 Aliases CVE-2022-23655 GHSA-53m6-44rc-h2q5

Missing server signature validation in OctoberCMS

LOW 25CWE-347Published 2022-02-23 · Updated 2025-04-23

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: High
Impact type: Security bypass
Confidentiality · integrity · availability: High · None · None
Fix status: Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-347.

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00644 51st percentileScored 2026-11-07

Fix Fixed october (octobercms): 1.1.11, 1.0.475october/system (Packagist): 1.1.11, 1.0.475

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
October CMS	october	1.1.0 to before 1.1.11; before 1.0.475	1.1.11, 1.0.475	Patch available	CNA
—	october/system (Packagist)	1.1.0 to before 1.1.11	1.1.11	Patch available	GHSA-53m6-44rc-h2q5
—	october/system (Packagist)	before 1.0.475	1.0.475	Patch available	GHSA-53m6-44rc-h2q5

october VendorOctober CMS Affected 1.1.0 to before 1.1.11; before 1.0.475 Fixed in 1.1.11, 1.0.475 Patch available CNA
october/system (Packagist) Vendor— Affected 1.1.0 to before 1.1.11 Fixed in 1.1.11 Patch available GHSA-53m6-44rc-h2q5
october/system (Packagist) Vendor— Affected before 1.0.475 Fixed in 1.0.475 Patch available GHSA-53m6-44rc-h2q5

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:octobercms:october::::::::	before 1.0.475; 1.1.0 to before 1.1.11	Vulnerable	October CMS

cpe:2.3:a:octobercms:october:*:*:*:*:*:*:*:* Versions before 1.0.475; 1.1.0 to before 1.1.11 Vulnerable ·October CMS

Remediation

Fix · CNA october (octobercms) Fixed in 1.1.11, 1.0.475
Fix · GHSA-53m6-44rc-h2q5 october/system (Packagist) Fixed in 1.1.11 Advisory →
Fix · GHSA-53m6-44rc-h2q5 october/system (Packagist) Fixed in 1.0.475 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2022-23655
2026-10-03 Alias added: GHSA-53m6-44rc-h2q5
2026-10-21 EPSS moved to the 50th–90th percentile

References

Patch 2

Advisory 1

https://nvd.nist.gov/vuln/detail/CVE-2022-23655

Other 1

https://github.com/octobercms/october

TI-2021-12316 Account Takeover in Octobercms KEVCVSS 3.1CRITICAL 9.1
TI-2021-12318 Arbitrary code execution in october/system CVSS 3.1HIGH 8.8
TI-2017-14456 October CMS build 412 is vulnerable to PHP code execution in the file upload… CVSS 3.0HIGH 7.2
TI-2023-23545 A Cross-Site Scripting (XSS) vulnerability in installation of October v.3.4.16 allows an… CVSS 3.1MEDIUM 5.4
TI-2023-19223 An arbitrary file upload vulnerability in October CMS v3.4.4 allows attackers to execute… CVSS 3.1MEDIUM 5.4
TI-2024-30847 October 3.6.30 allows an authenticated admin account to upload a PDF file containing… CVSS 3.1MEDIUM 4.7

See all 56 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences