CVE-2024-8247: newsletters Privilege Escalation — Fix

Description

The Newsletters plugin for WordPress is vulnerable to privilege escalation in all versions up to, and including, 4.9.9.2. This is due to the plugin not restricting what user meta can be updated as screen options. This makes it possible for authenticated attackers, with subscriber-level access and above, to escalate their privileges to that of an administrator. Please note that this only affects users with access to edit/update screen options, which means an administrator would need to grant lower privilege users with access to the Sent & Draft Emails page of the plugin in order for this to be exploited.

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CVSS v3.1 Score

8.8

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-269 CWE-269

Affected Products

Vendor	Product	Versions
tribulant	newsletters	< 4.9.9.3

References

Advisories & Patches

https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3146287%40newsletters-lite&new=3146287%40newsletters-lite&sfp_email=&sfph_mail=

Other References

https://plugins.trac.wordpress.org/browser/newsletters-lite/tags/4.9.9.1/wp-mailinglist.php#L3279 https://www.wordfence.com/threat-intel/vulnerabilities/id/2577102f-6355-4483-bd3d-1948497cb843?source=cve

Frequently Asked Questions

What is CVE-2024-8247? +

The Newsletters plugin for WordPress is vulnerable to privilege escalation in all versions up to, and including, 4.9.9.2. This is due to the plugin not restricting what user meta can be updated as screen options. This makes it possible for authenticated attackers, with subscriber-level access and above, to escalate their privileges to that of an administrator. Please note that this only affects users with access to edit/update screen options, which means an administrator would need to grant lower privilege users with access to the Sent & Draft Emails page of the plugin in order for this to be exploited. It has a CVSS v3.1 base score of 8.8 (HIGH).

How severe is CVE-2024-8247? +

CVE-2024-8247 has a CVSS v3.1 score of 8.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2024-8247? +

CVE-2024-8247 affects products from tribulant, specifically: newsletters. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-8247? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2024-8247