CVE-2018-8805 — Yxcms building system (compatible cell phone) v1

Yxcms building system (compatible cell phone) v1.4.7 has XSS via the content parameter to protected\apps\default\view\default\extend_guestbook.php or protected\apps\default\view\mobile\extend_guestbook.php in an index.php?r=default/column/index&col=guestbook request.

01What is this vulnerability?

Yxcms building system (compatible cell phone) v1.4.7 has XSS via the content parameter to protected\apps\default\view\default\extend_guestbook.php or protected\apps\default\view\mobile\extend_guestbook.php in an index.php?r=default/column/index&col=guestbook request.

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: 2018-03-20T05:00:00.000Z
• Last modified: 2024-08-05T07:02:26.099Z

09References

• github.com — https://github.com/QQ704568679/YXcms-Code-audit/blob/master/Yxcms%20Code%20audit