PT-2025-34190 · WordPress+1 · Slingblocks – Gutenberg Blocks By Funnelkit+1

D.Sim · Published 2025-08-21 · Updated 2025-08-21 · CVE-2025-8607

Positive Technologies (AI Summary)

CVSS v3.1

6.4

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions: SlingBlocks – Gutenberg Blocks by FunnelKit (Formerly WooFunnels) versions prior to 1.6.1

Description: The SlingBlocks – Gutenberg Blocks by FunnelKit (Formerly WooFunnels) plugin for WordPress is susceptible to Stored Cross-Site Scripting through the Countdown block's attributes. This is due to insufficient input sanitization and output escaping on user-supplied attributes, allowing authenticated attackers with contributor-level access or higher to inject arbitrary web scripts into pages. These scripts will execute when a user accesses the injected page.

Recommendations: Update SlingBlocks – Gutenberg Blocks by FunnelKit (Formerly WooFunnels) to version 1.6.1 or later.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2025-8607

Affected Products

Slingblocks – Gutenberg Blocks By Funnelkit

Woofunnels

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2025-8607 · Security Note
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3347030%40slingblocks%2Ftrunk&old=3275990%40slingblocks%2Ftrunk&sfp_email=&sfph_mail= · Note
• https://t.me/CVEtracker/30565 · Telegram Post
• https://twitter.com/VulmonFeeds/status/1958496646049747292 · Twitter Post
• https://wordfence.com/threat-intel/vulnerabilities/id/c88c6ad8-d4bd-4785-a6e7-e5034c58158b?source=cve · Note
• https://t.me/cveNotify/132985 · Telegram Post