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Medium severity · published May 17, 2026
CVE-2026-8739
Sanluan PublicCMS SafeConfigComponent.java getSignKey hard-coded key
5.3
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 21% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PU
PublicCMS · Sanluan
5.202506.d · source: vendor
Affected product
PU
PublicCMS
Sanluan
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-8739
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-8739
vuldb.com
https://vuldb.com/submit/809917
vuldb.com
https://vuldb.com/vuln/364327
vuldb.com
https://vuldb.com/vuln/364327/cti
vulnplus-note.wetolink.com
https://vulnplus-note.wetolink.com/share/PCVUlOncmwTC
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