TI-2024-04331 Aliases CVE-2024-4655 GHSA-f87m-vvg7-6xrc

Ultimate Blocks < 3.1.9 - Contributor+ Stored XSS

MEDIUM 61CWE-79Published 2024-07-11 · Updated 2024-08-01

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: Cross-site scripting
Confidentiality · integrity · availability: Low · Low · Low
Fix status: Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-79.

Summary

The Ultimate Blocks WordPress plugin before 3.1.9 does not validate and escape some of its block options before outputting them back in a page/post where the block is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00447 39th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA and NVD

Fix Fixed Ultimate Blocks (Unknown): 3.1.9

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Unknown	Ultimate Blocks	before 3.1.9	3.1.9	Patch available	CNA

Ultimate Blocks VendorUnknown Affected before 3.1.9 Fixed in 3.1.9 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:dotcamp:ultimate_blocks::::::wordpress::*	before 3.1.9	Vulnerable	ultimateblocks

cpe:2.3:a:dotcamp:ultimate_blocks:*:*:*:*:*:wordpress:*:* Versions before 3.1.9 Vulnerable ·ultimateblocks

Remediation

Fix · CNA Ultimate Blocks (Unknown) Fixed in 3.1.9

Timeline

2026-10-02 Threatist record created from CVE-2024-4655
2026-10-03 Alias added: GHSA-f87m-vvg7-6xrc

References

Exploit 1

https://wpscan.com/vulnerability/a0dc73b3-3c51-4d03-963f-00fa7d8b0d51/

TI-2024-09896 Ultimate Blocks < 3.2.4 - Contributor+ Stored XSS CVSS 3.1MEDIUM 5.4
TI-2024-07913 Ultimate Blocks < 3.2.2 - Contributor+ Stored XSS CVSS 3.1MEDIUM 5.4
TI-2024-05904 Ultimate Blocks < 3.2.0 - Contributor+ Stored XSS CVSS 3.1MEDIUM 4.6
TI-2024-03973 Cross-site scripting in ultimateblocks Ultimate Blocks – 25+ Gutenberg Blocks for Block… CVSS 3.1MEDIUM 6.4
TI-2025-02549 Cross-site scripting in ultimateblocks Ultimate Blocks – 25+ Gutenberg Blocks for Block… CVSS 3.1MEDIUM 6.4
TI-2024-24961 WordPress Ultimate Blocks – WordPress Blocks Plugin plugin <= 3.1.9 - Cross Site Scripting (XSS) vulnerability CVSS 3.1MEDIUM 6.5

See all 8 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences