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TI-2026-03905 Aliases CVE-2026-4495GHSA-7r5p-f7h5-h6gp

atjiu pybbs CommentApiController.java create cross site scripting

Priority LOW 23CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
Cross-site scripting, Code execution
Confidentiality · integrity · availability
None · Low · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79 and CWE-94.

Summary

A security flaw has been discovered in atjiu pybbs 6.0.0. This impacts the function create of the file src/main/java/co/yiiu/pybbs/controller/api/CommentApiController.java. The manipulation results in cross site scripting. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00279 20th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
atjiupybbs6.0.0—No fix listedCNA
  • pybbs Vendoratjiu Affected 6.0.0 Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:pybbs_project:pybbs:*:*:*:*:*:*:*:*——atjiu
  • cpe:2.3:a:pybbs_project:pybbs:*:*:*:*:*:*:*:* Versions — — ·atjiu

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-4495
  2. 2026-10-03 Alias added: GHSA-7r5p-f7h5-h6gp

References

Exploit 1

  • TI-2025-07827 atjiu pybbs Email Verification improper authorization CVSS 4.0MEDIUM 6.9
  • TI-2025-07826 atjiu pybbs Verification Code login Captcha CVSS 4.0MEDIUM 6.9
  • TI-2025-07829 atjiu pybbs UserAdminController.java update weak password CVSS 4.0MEDIUM 6.3
  • TI-2025-07828 atjiu pybbs Registered Email SettingsApiController.java sendEmailCode information exposure CVSS 4.0MEDIUM 6.3
  • TI-2025-11280 atjiu pybbs UserApiController.java information disclosure CVSS 4.0MEDIUM 5.3
  • TI-2025-08065 atjiu pybbs CookieUtil.java setCookie cross-site request forgery CVSS 4.0MEDIUM 5.3
See all 17 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences