PT-2025-17239 · Mybb · Mybb

Published 2025-03-09 · Updated 2025-04-23 · CVE-2025-29457

Positive Technologies (AI Summary)

CVSS v2.0

8.0

High

Base vector

AV:N/AC:L/Au:S/C:C/I:P/A:P

Name of the Vulnerable Software and Affected Versions MyBB version 1.8.38

Description An issue in MyBB allows a remote attacker to obtain sensitive information via the Import a Theme function. The supplier disputes this due to the allowed actions of Board administrators and SSRF mitigation.

Recommendations For MyBB version 1.8.38, consider disabling the Import a Theme function until a patch is available to prevent potential exploitation. Restrict access to sensitive information to minimize the risk of disclosure. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

SSRF

Weakness Enumeration

CWE-918

Related Identifiers

BDU:2025-08885

CVE-2025-29457

Affected Products

Mybb

References · 9

• 🔥 https://yuque.com/morysummer/vx41bz/vro4dvxzuiwlg6uv · Exploit
• https://osv.dev/vulnerability/CVE-2025-29457 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-29457 · Security Note
• https://bdu.fstec.ru/vul/2025-08885 · Security Note
• https://docs.mybb.com/1.8/administration/security/protection/#limit-access-to-private-hosts-and-ip-addresses · Note
• https://t.me/cvedetector/23294 · Telegram Post
• https://t.me/cvenotify/119504 · Telegram Post
• https://t.me/cvetracker/21897 · Telegram Post
• https://twitter.com/CVEnew/status/1913675353970889153 · Twitter Post