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CVE-2025-8546

20
FAUCET Score

CVE-2025-8546 is a problematic vulnerability affecting atjiu pybbs up to version 6.0.0, specifically within the adminlogin/login function's Verification Code Handler. This flaw allows for the manipulation of the captcha mechanism, making it guessable. With a CVSS score of 5.3 (MEDIUM), the vulnerability is remotely exploitable with low attack complexity, potentially leading to a compromise of confidentiality. While a public exploit has been disclosed, there is no evidence of active exploitation, and it lacks Metasploit, Nuclei, or ExploitDB modules. Community discussion and media coverage are minimal, indicating low public attention.

Impacted Technologies

VendorProductVersion(s)CPE
<= 6.0.0CPE matchmatch criteria
cpe:2.3:a:pybbs_project:pybbs:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

5.5MEDIUM

CVSS:4.0/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

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
VS Confidentiality
LOW
VS Integrity
NONE
VS Availability
NONE
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
PROOF_OF_CONCEPT
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.45%
Probability of exploitation in next 30 days
EPSS Percentile
37.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0045 is in the 23rd percentile among its peer group of 23,701 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / atjiu/pybbs/commit/ecaf8d46944fd03e3c4ea05698f8acf0aaa570cf
Patch
github.com / atjiu/pybbs/issues/199
ExploitIssue Tracking
github.com / atjiu/pybbs/issues/199
ExploitIssue Tracking
github.com / atjiu/pybbs/issues/199
Issue Tracking
vuldb.com
Permissions RequiredVDB Entry
vuldb.com
Third Party AdvisoryVDB Entry
vuldb.com
Third Party AdvisoryVDB Entry