CVE-2023-30334 — AsmBB v2

AsmBB v2.9.1 was discovered to contain multiple cross-site scripting (XSS) vulnerabilities via the MiniMag.asm and bbcode.asm libraries.

01What is this vulnerability?

AsmBB v2.9.1 was discovered to contain multiple cross-site scripting (XSS) vulnerabilities via the MiniMag.asm and bbcode.asm libraries.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-05-08T00:00:00.000Z
• Last modified: 2025-01-29T20:50:07.643Z

09References

• board.asm32.info — https://board.asm32.info/thanks-to-the-hxp-ctf-challenge-several-serious-vulnera…
• ctf.zeyu2001.com — https://ctf.zeyu2001.com/2023/hxp-ctf/true_web_assembly
• asm32.info — https://asm32.info/fossil/asmbb/info/7dfa4f56b473f76c
• fresh.flatassembler.net — https://fresh.flatassembler.net/fossil/repo/fresh/info/a3caaf7ad8503348
• gist.github.com — https://gist.github.com/zeyu2001/1985d03ff919d08a9ea79bdeb5a16949