WordPress VS Contact Form plugin <= 14.7 - Sum Captcha Bypass vulnerability

published 2024-05-17 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-28460

cvss: 5.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.5%; EPSS 0.5% chance of exploitation in 30 days, percentile 42%
public exploits: 0; none known

Guessable CAPTCHA vulnerability in Guido VS Contact Form allows Functionality Bypass.This issue affects VS Contact Form: from n/a through 14.7.

Patch / fix

fixed in 1

Guido VS Contact Form 14.8

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 2 y ago (2024-05-17)

Exploit prediction

0.48% chance of exploitation in the next 30 days, higher than 42% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected products

Guido VS Contact Form

Classification

Weakness

CWE-804 Guessable CAPTCHA

Technology feeds

WordPress rss critical rss

References

patchstack.com /database/vulnerability/very-simple-contact-form/wordpress-vs-contact-form-plugin-14-7-sum-captcha-bypass-vuln
vdb-entry

Sources

CVE List CVE-2024-30540
NVD CVE-2024-30540

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.

Summary