VulnerabilityPublished 27 Oct 2025

CVE-2025-12297: atjiu pybbs · Information Disclosure

Affects atjiu pybbsSource CVE Database V5

Public exploit available · CVSS 5.3 Medium.

Data as of 26 Oct 2026, 12:54 UTC

CVSS 4.0 base score

5.3Medium

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.3% chance of exploitation in 30 days – higher than 29% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

CVSS: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:P

Base metrics

Attack Vector: Network
Attack Complexity: Low
Attack Requirements: None
Privileges Required: Low
User Interaction: None
Vulnerable system confidentiality: Low
Vulnerable system integrity: None
Vulnerable system availability: None
Subsequent system confidentiality: None
Subsequent system integrity: None
Subsequent system availability: None

Threat metrics

Exploit Maturity: POC

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable system is bound to the network stack and the set of possible attackers extends beyond the other options listed below, up to and including the entire Internet. Such a vulnerability is often termed “remotely exploitable” and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Attack Requirements: None: The successful attack does not depend on the deployment and execution conditions of the vulnerable system. The attacker can expect to be able to reach the vulnerability and execute the exploit under all or most instances of the vulnerability.
Privileges Required: Low: The attacker requires privileges that provide basic capabilities that are typically limited to settings and resources owned by a single low-privileged user. Alternatively, an attacker with Low privileges has the ability to access only non-sensitive resources.
User Interaction: None: The vulnerable system can be exploited without interaction from any human user, other than the attacker.
Vulnerable system confidentiality: Low: There is some loss of confidentiality. Access to some restricted information is obtained, but the attacker does not have control over what information is obtained, or the amount or kind of loss is limited. The information disclosure does not cause a direct, serious loss to the Vulnerable System.
Vulnerable system integrity: None: There is no loss of integrity within the Vulnerable System.
Vulnerable system availability: None: There is no impact to availability within the Vulnerable System.
Subsequent system confidentiality: None: There is no loss of confidentiality within the Subsequent System or all confidentiality impact is constrained to the Vulnerable System.
Subsequent system integrity: None: There is no loss of integrity within the Subsequent System or all integrity impact is constrained to the Vulnerable System.
Subsequent system availability: None: There is no impact to availability within the Subsequent System or all availability impact is constrained to the Vulnerable System.
Exploit Maturity: POC: Based on threat intelligence sources each of the following must apply: · Proof-of-concept is publicly available · No knowledge of reported attempts to exploit this vulnerability · No knowledge of publicly available solutions used to simplify attempts to exploit the vulnerability

Definitions: FIRST CVSS v4.0 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 27 Oct 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: evidence found.
CVSS exploit maturity: proof of concept public
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CVSS vector, the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Affected software

Product	Affected	Fixed in
npmatjiu/pybbs`pkg:npm/atjiu/pybbs`Other threats	Affected =6.0	Fixed in–

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AI-suggested

Monitor official atjiu channels for patches addressing CVE-2025-12297 and apply them immediately upon release.
Until patches are available, restrict network access to the UserApiController endpoints by implementing firewall rules or API gateway policies limiting access to trusted IPs or internal networks.
Conduct thorough code reviews and penetration testing focusing on UserApiController and related API endpoints to identify and remediate similar information disclosure issues.
Implement robust logging and monitoring to detect unusual access patterns or data exfiltration attempts targeting pybbs services.
Employ web application firewalls (WAFs) with custom rules to block suspicious requests targeting the vulnerable API functions.
Educate developers and administrators about secure coding practices and the risks of information disclosure vulnerabilities.
Consider isolating or segmenting pybbs deployments to minimize exposure in case of compromise.

Description

CVE-2025-12297 is a medium-severity information disclosure vulnerability in atjiu pybbs version 6.0.0, specifically affecting an unknown function in UserApiController.java. It allows remote attackers to obtain sensitive information without authentication or user interaction. The vulnerability has a CVSS 4.0 base score of 5.3, indicating moderate risk. Exploitation requires low privileges but no user interaction, and the attack vector is network-based. Although no public exploits are currently known in the wild, the exploit code has been made public, increasing the risk of exploitation.

Impact

For European organizations, this vulnerability poses a risk of unauthorized disclosure of sensitive user or system information, potentially leading to privacy violations, compliance issues (e.g., GDPR), and aiding attackers in crafting more targeted attacks. Organizations using pybbs 6.0.0 in public-facing or internal forums, community platforms, or collaboration tools could see exposure of user data or system details. This could undermine trust, cause reputational damage, and lead to regulatory penalties. The medium severity suggests moderate impact, but the ease of remote exploitation without user interaction increases the threat level. Sectors with high reliance on pybbs-based platforms, such as education, government, or enterprises with community engagement, are particularly vulnerable. The information disclosed could include user credentials, configuration details, or other sensitive data that attackers could leverage for privilege escalation or lateral movement.

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 3 Nov 2025, 17:51 UTC

Technical details

References

Community reviews

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