CVE-2018-16975 — An issue was discovered in Elefant CMS before 2

An issue was discovered in Elefant CMS before 2.0.7. There is a PHP Code Execution Vulnerability in /designer/add/stylesheet.php by using a .php extension in the New Stylesheet Name field in conjunction with <?php content, because of insufficient input validation in apps/desig

01What is this vulnerability?

An issue was discovered in Elefant CMS before 2.0.7. There is a PHP Code Execution Vulnerability in /designer/add/stylesheet.php by using a .php extension in the New Stylesheet Name field in conjunction with <?php content, because of insufficient input validation in apps/designer/handlers/csspreview.php.

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: 2018-09-12T21:00:00.000Z
• Last modified: 2024-08-05T10:39:58.969Z

09References

• github.com — https://github.com/jbroadway/elefant/issues/286
• github.com — https://github.com/jbroadway/elefant/commit/0795ab57c7ffa53ff4af57e229f6d9680fa5…
• github.com — https://github.com/jbroadway/elefant/releases/tag/elefant_2_0_7_stable