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CVE-2025-8546 – Atjiu Pybbs Captcha Guessing Vulnerability (Remote)

The following table lists the changes that have been made to the
CVE-2025-8546 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • New CVE Received
    by [email protected]

    Aug. 05, 2025

    Action Type Old Value New Value
    Added Description A vulnerability, which was classified as problematic, was found in atjiu pybbs up to 6.0.0. This affects the function adminlogin/login of the component Verification Code Handler. The manipulation leads to guessable captcha. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The patch is named ecaf8d46944fd03e3c4ea05698f8acf0aaa570cf. It is recommended to apply a patch to fix this issue.
    Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
    Added CVSS V2 (AV:N/AC:L/Au:N/C:P/I:N/A:N)
    Added CWE CWE-287
    Added CWE CWE-804
    Added Reference https://github.com/atjiu/pybbs/commit/ecaf8d46944fd03e3c4ea05698f8acf0aaa570cf
    Added Reference https://github.com/atjiu/pybbs/issues/199
    Added Reference https://github.com/atjiu/pybbs/issues/199#issue-3256276118
    Added Reference https://github.com/atjiu/pybbs/issues/199#issuecomment-3134573731
    Added Reference https://vuldb.com/?ctiid.318675
    Added Reference https://vuldb.com/?id.318675
    Added Reference https://vuldb.com/?submit.622179
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