CVE-2026-6796Network attack vector

Password exposure via cleartext failed-login logging

Published Apr 21, 2026 · Updated Apr 21, 2026

Cleartext credential storage in PublicCMS 6.202506.a through 6.202506.d allows remote authenticated users to place passwords in log files. The log_login function in LoginAdminController writes the user-controlled errorPassword argument into the failed-login record without masking or encryption. Exploitation requires low-privileged network access; anyone who can later read the log can recover the submitted password.

CVSS severity4.3
Medium
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cleartext credential storage in PublicCMS 6.202506.a through 6.202506.d allows remote authenticated users to place passwords in log files. The log_login function in LoginAdminController writes the user-controlled errorPassword argument into the failed-login record without masking or encryption. Exploitation requires low-privileged network access; anyone who can later read the log can recover the submitted password.

The record

CVE
CVE-2026-6796
Published
Apr 21, 2026
Updated
Apr 21, 2026
Vendor
Tianjin Black Core Technology Co., LTD.
Product
PublicCMS
Classifications
CWE-313, CWE-312, T1552.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 21, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 21, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=6.202506.a
  2. Affected versionversion=6.202506.b
  3. Affected versionversion=6.202506.c
  4. Affected versionversion=6.202506.d

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Tianjin Black Core Technology Co., LTD. · PublicCMSversion=6.202506.a; version=6.202506.b; version=6.202506.c; version=6.202506.d

Published CVSS scores

5.3VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X
4.3VulDBCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:X/RL:X/RC:X
4.0VulDBAV:N/AC:L/Au:S/C:P/I:N/A:N
4.3VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:X/RL:X/RC:X

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-313Cleartext Storage in a File or on Disk
CWE-312Cleartext Storage of Sensitive Information
T1552.001Credentials In Files

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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