CVE-2025-8546
atjiu pybbs Verification Code login Captcha
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.
INFO
Published Date :
Aug. 5, 2025, 5:15 a.m.
Last Modified :
Sept. 3, 2025, 2 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Apply the patch ecaf8d46944fd03e3c4ea05698f8acf0aaa570cf.
- Update pybbs to a version later than 6.0.0.
Public PoC/Exploit Available at Github
CVE-2025-8546 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-8546.
| URL | Resource |
|---|---|
| https://github.com/atjiu/pybbs/commit/ecaf8d46944fd03e3c4ea05698f8acf0aaa570cf | Patch |
| https://github.com/atjiu/pybbs/issues/199 | Exploit Issue Tracking |
| https://github.com/atjiu/pybbs/issues/199#issue-3256276118 | Exploit Issue Tracking |
| https://github.com/atjiu/pybbs/issues/199#issuecomment-3134573731 | Issue Tracking |
| https://vuldb.com/?ctiid.318675 | Permissions Required VDB Entry |
| https://vuldb.com/?id.318675 | Third Party Advisory VDB Entry |
| https://vuldb.com/?submit.622179 | Third Party Advisory VDB Entry |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-8546 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-8546
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
None
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-8546 vulnerability anywhere in the article.
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.
-
Initial Analysis by [email protected]
Sep. 03, 2025
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:pybbs_project:pybbs:*:*:*:*:*:*:*:* versions up to (including) 6.0.0 Added Reference Type VulDB: https://github.com/atjiu/pybbs/commit/ecaf8d46944fd03e3c4ea05698f8acf0aaa570cf Types: Patch Added Reference Type VulDB: https://github.com/atjiu/pybbs/issues/199 Types: Exploit, Issue Tracking Added Reference Type VulDB: https://github.com/atjiu/pybbs/issues/199#issue-3256276118 Types: Exploit, Issue Tracking Added Reference Type VulDB: https://github.com/atjiu/pybbs/issues/199#issuecomment-3134573731 Types: Issue Tracking Added Reference Type VulDB: https://vuldb.com/?ctiid.318675 Types: Permissions Required, VDB Entry Added Reference Type VulDB: https://vuldb.com/?id.318675 Types: Third Party Advisory, VDB Entry Added Reference Type VulDB: https://vuldb.com/?submit.622179 Types: Third Party Advisory, VDB Entry -
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