PT-2024-31289 · WordPress · Blocksy Companion

Wesley · Published 2024-05-11 · Updated 2024-07-06 · CVE-2024-4487

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 Blocksy Companion plugin for WordPress versions up to, and including, 2.0.45

Description The issue is related to Stored Cross-Site Scripting via SVG uploads due to insufficient input sanitization and output escaping. This allows authenticated attackers with contributor-level permissions and above to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Recommendations Update to a patched version immediately to resolve the issue. As a temporary workaround, consider restricting SVG uploads or disabling the vulnerable functionality until a patch is available. Ensure that only trusted users have contributor-level permissions and above to minimize the risk of exploitation.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2024-4487

Affected Products

Blocksy Companion

References · 7

• https://osv.dev/vulnerability/CVE-2024-4487 · Vendor Advisory
• https://plugins.trac.wordpress.org/changeset/3084198/#file18 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2024-4487 · Security Note
• https://wordfence.com/threat-intel/vulnerabilities/id/5208529c-4ac3-42a4-82d0-7f4d2e486236?source=cve · Note
• https://plugins.trac.wordpress.org/browser/blocksy-companion/tags/2.0.45/framework/features/svg.php#L20 · Note
• https://twitter.com/CVEnew/status/1789348935032594791 · Twitter Post
• https://twitter.com/oktsec/status/1809696204453827037 · Twitter Post