How severe is CVE-2023-6520?

CVE-2023-6520 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2023-6520 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-6520?

CVE-2023-6520 affects Melapress Wp 2fa. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-6520?

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

Does CVE-2023-6520 have an EU (EUVD) identifier?

Yes. CVE-2023-6520 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-58751.

When was CVE-2023-6520 published?

CVE-2023-6520 was published on 2024-01-11 and last updated on 2026-06-17.

CVE-2023-6520

CVE-2023-6520 is a medium-severity vulnerability in Melapress Wp 2fa with a CVSS 3.x base score of 4.3. 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-352.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
EPSS exploit prediction: 0% (16th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-58751
Weakness: CWE-352
Affected product: Melapress Wp 2fa
Published: 2024-01-11
Last modified: 2026-06-17

Description

The WP 2FA – Two-factor authentication for WordPress plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 2.5.0. This is due to missing or incorrect nonce validation on the send_backup_codes_email function. This makes it possible for unauthenticated attackers to send emails with arbitrary content to registered users via a forged request granted they can trick a site administrator or other registered user into performing an action such as clicking on a link. While a nonce check is present, it is only executed if a nonce is set. By omitting a nonce from the request, the check can be bypassed.

Frequently asked questions

What is CVE-2023-6520?: The WP 2FA – Two-factor authentication for WordPress plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 2.5.0. This is due to missing or incorrect nonce validation on the send_backup_codes_email function. This makes it possible for unauthenticated attackers to send emails with arbitrary content to registered users via a forged request granted they can trick a site administrator or other registered user into performing an action such as clicking on a link. While a nonce check is present, it is only executed if a nonce is set. By omitting a nonce from the request, the check can be bypassed.
How severe is CVE-2023-6520?: CVE-2023-6520 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2023-6520 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-6520?: CVE-2023-6520 affects Melapress Wp 2fa. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-6520?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-6520 have an EU (EUVD) identifier?: Yes. CVE-2023-6520 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-58751.
When was CVE-2023-6520 published?: CVE-2023-6520 was published on 2024-01-11 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:melapress:wp_2fa:*:*:*:*:*:wordpress:*:*

More vulnerabilities in Melapress Wp 2fa

CVE-2024-32568 — High (CVSS 7.1): Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Melapress WP 2FA…
CVE-2022-44587 — Medium (CVSS 5.3): Insertion of Sensitive Information into Log File vulnerability in WP 2FA allows Accessing Functionality Not Properly…
CVE-2022-44595 — Medium (CVSS 5.3): Improper Authentication vulnerability in Melapress WP 2FA allows Authentication Bypass.This issue affects WP 2FA: from…

All CVEs affecting Melapress Wp 2fa →

Other CWE-352 (Cross-Site Request Forgery (CSRF)) vulnerabilities

CVE-2025-32642 — Critical (CVSS 10.0): Cross-Site Request Forgery (CSRF) vulnerability in appsbd Vite Coupon vite-coupon allows Remote Code Inclusion.This…
CVE-2025-23922 — Critical (CVSS 10.0): Cross-Site Request Forgery (CSRF) vulnerability in Harsh iSpring Embedder embed-ispring allows Upload a Web Shell to a…
CVE-2017-5145 — Critical (CVSS 10.0): An issue was discovered in Carlo Gavazzi VMU-C EM prior to firmware Version A11_U05, and VMU-C PV prior to firmware…
CVE-2019-25729 — Critical (CVSS 9.8): PDF Signer 3.0 contains a server-side template injection vulnerability that allows unauthenticated attackers to execute…
CVE-2025-48340 — Critical (CVSS 9.8): Cross-Site Request Forgery (CSRF) vulnerability in Danny Vink User Profile Meta Manager user-profile-meta allows…
CVE-2025-2907 — Critical (CVSS 9.8): The Order Delivery Date WordPress plugin before 12.3.1 does not have authorization and CSRF checks when importing…

Browse all CWE-352 (Cross-Site Request Forgery (CSRF)) vulnerabilities →