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CVE-2026-100175Published

Postie <= 1.9.87 - Unauthenticated Stored Cross-Site Scripting via Email Body URL Autolink

Exact source revision recorded 28 Oct 2026 08:06:08 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

cve-program · CVE-2026-100175

Published

The Postie plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Email Body URL Autolink in all versions up to, and including, 1.9.87 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This is possible because the ?postie=get-mail endpoint is reachable by unauthenticated users with no capability check, and the email processing path removes WordPress's kses output filters before saving raw markup, allowing the unescaped href attribute value to be stored as post content.

Source published
28 Oct 2026 06:45:12 UTC
Source modified
28 Oct 2026 06:45:12 UTC
Observed here
28 Oct 2026 08:06:08 UTC
Source terms
CVE Program Terms of Use

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: cve-program · CVE Program Terms of Use. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS 3.1 · 5.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N

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Sources read 7 Nov 08:57 UTC · 274 of 275 readable · 272 fully read · documentation 469/469 current

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