CVE-2018-18308 — In the 4

In the 4.2.23 version of BigTree, a Stored XSS vulnerability has been discovered in /admin/ajax/file-browser/upload/ (aka the image upload area).

01What is this vulnerability?

In the 4.2.23 version of BigTree, a Stored XSS vulnerability has been discovered in /admin/ajax/file-browser/upload/ (aka the image upload area).

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: 2018-10-16T22:00:00.000Z
• Last modified: 2024-08-05T11:08:21.459Z

09References

• packetstormsecurity.com — http://packetstormsecurity.com/files/149788/BigTree-CMS-4.2.23-Cross-Site-Script…
• www.exploit-db.com — https://www.exploit-db.com/exploits/45628/
• github.com — https://github.com/bigtreecms/BigTree-CMS/issues/356
• github.com — https://github.com/bigtreecms/BigTree-CMS/commit/ffd668a3aa7d2f540dbcdf5751f2073…