CVE-2026-8739 (GCVE-0-2026-8739)

Vulnerability from cvelistv5 – Published: 2026-05-17 07:45 – Updated: 2026-05-18 20:09
VLAI
Title
Sanluan PublicCMS SafeConfigComponent.java getSignKey hard-coded key
Summary
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.
Severity
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R
5.3 (Medium)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R
CWE
  • CWE-321 - Use of Hard-coded Cryptographic Key
  • CWE-320 - Key Management Error
Assigner
References
URL Tags
https://vuldb.com/vuln/364327 vdb-entrytechnical-description
https://vuldb.com/vuln/364327/cti signaturepermissions-required
https://vuldb.com/submit/809917 third-party-advisory
https://vulnplus-note.wetolink.com/share/PCVUlOncmwTC exploit
Impacted products
Vendor Product Version
Sanluan PublicCMS Affected: 5.202506.d
    cpe:2.3:a:publiccms:publiccms:*:*:*:*:*:*:*:*
 Create a notification for this product.
Credits
vulnplusbot (VulDB User) VulDB CNA Team
Show details on NVD website
To clipboard 

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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.