Slick Social Share Buttons <= 2.4.11 - Authenticated (Subscriber+) Arbitrary Option Update
Strategic Overview
- Status
- Unpatched
- Affected Plugin
- Slick Social Share Buttons
- Affected Version
<= 2.4.11- CVSS
- 8.8High
- Weakness type
- CWE-285 · Improper Authorization
- CVE
CVE-2023-6878
At a glance
CVE-2023-6878 is a high-severity Improper Authorization vulnerability in the Slick Social Share Buttons WordPress plugin, affecting versions <= 2.4.11. It carries a CVSS score of 8.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires an authenticated account at Subscriber level or above. No fixed release has been reported yet; treat installations running this software as exposed. Disclosed December 2023, reported by István Márton.
Vulnerability Overview
The Slick Social Share Buttons plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'dcssb_ajax_update' function in versions up to, and including, 2.4.11. This makes it possible for authenticated attackers, with subscriber-level permissions or above to update the site options arbitrarily.
Technical Analysis
The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.
CWE-285: Improper Authorization
Slick Social Share Buttons <= 2.4.11 carries this weakness at dcssb_ajax_update, and reaching it takes an account at Subscriber level or above. Improper authorization means a permission check exists but does not cover the case being exercised, so a caller who is allowed to do one thing is allowed to do a neighbouring thing as well.
A lower-privileged account performs an action reserved for a higher one, which on a multi-author or membership site means an ordinary user reaching administrative behaviour. No fixed build of this plugin is recorded for Slick Social Share Buttons yet, so installs running <= 2.4.11 stay exposed until the vendor ships one.
Remediation
No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.
How does WordSec protect against this?
Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. No patched version is recorded yet, which is the case where a filtering layer matters most, because there is nothing to update to.
- Login Security
- Alerts
External References
Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C