8.8

CVE-2021-24280: query solutions redirection for contact form 7 Deserialization of Untrusted Data

CVSS: 8.8v3.1HighModified
Published 14-05-2021Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2021-24280 is a high (CVSS 8.8) Deserialization of Untrusted Data vulnerability in query solutions redirection for contact form 7. EPSS estimates a 1.97% chance of exploitation in the next 30 days, higher than 80% of scored vulnerabilities. 2 public exploits are recorded. Fixed in 2.3.4.

Overall risk
46/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (NVD)
EPSS score
1.97%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits2reference

Timeline

  1. 14-05-2021
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

In the Redirection for Contact Form 7 WordPress plugin before 2.3.4, any authenticated user, such as a subscriber, could use the import_from_debug AJAX action to inject PHP objects.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

1.97%

Chance of exploitation in the next 30 days

Percentile

80%

Versus all other CVEs

30-day change

0.00 pp

From 1.97% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.97%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

2 found
  • referenceUnverified

    Exploit Reference (wordfence.com)

    Maturity: unknown

  • referenceUnverified

    Exploit Reference (wpscan.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Query solutions1 product
Querysol1 product
Wordpress1 product
  • wpcf7-redirect< 2.3.4

3 vendors · 3 products

References

3 links