CVE-2018-20322 — LimeSurvey version 3

LimeSurvey version 3.15.5 contains a Cross-site scripting (XSS) vulnerability in Survey Resource zip upload, resulting in Javascript code execution against LimeSurvey administrators. Fixed in version 3.15.6.

01What is this vulnerability?

LimeSurvey version 3.15.5 contains a Cross-site scripting (XSS) vulnerability in Survey Resource zip upload, resulting in Javascript code execution against LimeSurvey administrators. Fixed in version 3.15.6.

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: 2018-12-21T22:00:00.000Z
• Last modified: 2024-08-05T11:58:18.783Z

09References

• github.com — https://github.com/LimeSurvey/LimeSurvey/commit/bfee69edaa0b90f97dc2d8fab09a8795…
• bugs.limesurvey.org — https://bugs.limesurvey.org/view.php?id=14376