CVE-2019-20204 — The Postie plugin 1

The Postie plugin 1.9.40 for WordPress allows XSS, as demonstrated by a certain payload with jaVasCript:/* at the beginning and a crafted SVG element.

01What is this vulnerability?

The Postie plugin 1.9.40 for WordPress allows XSS, as demonstrated by a certain payload with jaVasCript:/* at the beginning and a crafted SVG element.

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: 2020-01-01T21:59:58.000Z
• Last modified: 2024-08-05T02:39:08.771Z

09References

• github.com — https://github.com/V1n1v131r4/Exploiting-Postie-WordPress-Plugin-/blob/master/RE…
• postieplugin.com — https://postieplugin.com/
• wordpress.org — https://wordpress.org/plugins/postie/#developers
• wpvulndb.com — https://wpvulndb.com/vulnerabilities/10002
• packetstormsecurity.com — http://packetstormsecurity.com/files/155973/WordPress-Postie-1.9.40-Cross-Site-S…