How severe is CVE-2021-24279?

CVE-2021-24279 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2021-24279 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-24279?

CVE-2021-24279 affects Querysol Redirection For Contact Form 7. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-24279?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-24279 published?

CVE-2021-24279 was published on 2021-05-14 and last updated on 2026-06-17.

CVE-2021-24279

CVE-2021-24279 is a medium-severity vulnerability in Querysol Redirection For Contact Form 7 with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-863.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.0
EPSS exploit prediction: 1% (53rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-863
Affected product: Querysol Redirection For Contact Form 7
Published: 2021-05-14
Last modified: 2026-06-17

Description

In the Redirection for Contact Form 7 WordPress plugin before 2.3.4, low level users, such as subscribers, could use the import_from_debug AJAX action to install any plugin from the WordPress repository.

Frequently asked questions

What is CVE-2021-24279?: In the Redirection for Contact Form 7 WordPress plugin before 2.3.4, low level users, such as subscribers, could use the import_from_debug AJAX action to install any plugin from the WordPress repository.
How severe is CVE-2021-24279?: CVE-2021-24279 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2021-24279 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-24279?: CVE-2021-24279 affects Querysol Redirection For Contact Form 7. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-24279?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-24279 published?: CVE-2021-24279 was published on 2021-05-14 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:querysol:redirection_for_contact_form_7:*:*:*:*:*:wordpress:*:*

More vulnerabilities in Querysol Redirection For Contact Form 7

CVE-2021-24280 — High (CVSS 8.8): In the Redirection for Contact Form 7 WordPress plugin before 2.3.4, any authenticated user, such as a subscriber,…
CVE-2021-24278 — High (CVSS 7.5): In the Redirection for Contact Form 7 WordPress plugin before 2.3.4, unauthenticated users can use the wpcf7r_get_nonce…
CVE-2021-24282 — Medium (CVSS 6.3): In the Redirection for Contact Form 7 WordPress plugin before 2.3.4, any authenticated user, such as a subscriber,…
CVE-2021-24281 — Medium (CVSS 4.3): In the Redirection for Contact Form 7 WordPress plugin before 2.3.4, any authenticated user, such as a subscriber,…

All CVEs affecting Querysol Redirection For Contact Form 7 →

Other CWE-863 (Incorrect Authorization) vulnerabilities

CVE-2026-48286 — Critical (CVSS 10.0): Adobe Campaign Classic (ACC) versions 7.4.3 build 9396 and earlier are affected by an Incorrect Authorization…
CVE-2026-48303 — Critical (CVSS 10.0): Adobe Campaign Classic (ACC) versions 7.4.3 build 9394 and earlier are affected by an Incorrect Authorization…
CVE-2026-44330 — Critical (CVSS 10.0): free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's NEF mounts the…
CVE-2026-46595 — Critical (CVSS 10.0): Previously, CVE-2024-45337 fixed an authorization bypass for misused ssh server configurations; if any other type of…
CVE-2026-33105 — Critical (CVSS 10.0): Improper authorization in Microsoft Azure Kubernetes Service allows an unauthorized attacker to elevate privileges over…
CVE-2026-32213 — Critical (CVSS 10.0): Improper authorization in Azure AI Foundry allows an unauthorized attacker to elevate privileges over a network.

Browse all CWE-863 (Incorrect Authorization) vulnerabilities →