CVE-2026-8739

Sanluan PublicCMS SafeConfigComponent.java getSignKey hard-coded key

MEDIUM
5.3
CVSS Score
Published: May 17, 2026 at 07:45 AM UTC
Updated: October 26, 2026 at 01:10 PM UTC
2 products affected across 2 vendorsPubliccmsPublicCMS

Using PublicCMS by Sanluan?

Get instant alerts when new vulnerabilities affect PublicCMS - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
MEDIUM5.3
Exploit prediction
EPSS 0.3%
SSVC
PoC

Description

A vulnerability was detected in Sanluan PublicCMS 5.202506.d. The affected element is the function getSignKey of the file publiccms-core/src/main/java/com/publiccms/logic/component/config/SafeConfigComponent.java. The manipulation of the argument privatefile_key results in use of hard-coded cryptographic key . The attack can be executed remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (4)

VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/vuln/364327
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/364327/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/809917

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.3MEDIUMVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-321CWE-320

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card