CVE-2023-2757 Cross-site scripting in Waiting: One-click countdowns

High 7.4 Published 18 May 2023 Updated 8 Apr 2026

Subscribers can inject arbitrary scripts via missing authorization checks in the Waiting: One-click countdowns WordPress plugin.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2023-2757?

CVE-2023-2757 is a high-severity cross-site scripting vulnerability in pluginbuilders Waiting: One-click countdowns, published on 18 May 2023. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

The Waiting: One-click countdowns plugin for WordPress is vulnerable to authorization bypass due to a missing capability check on 'saveLang' functions in versions up to, and including, 0.6.2. This could lead to Cross-Site Scripting due to insufficient input sanitization and output escaping. This makes it possible for subscriber-level attackers to access functions to save plugin data that can potentially lead to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Weakness: CWE-79, CWE-862

Which versions are affected by CVE-2023-2757?

It affects 1 product.

Products include Plugin Waiting.

How do I fix CVE-2023-2757?

No fix has been published for CVE-2023-2757 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2023-2757 being exploited?

There is no known exploitation of CVE-2023-2757 in the wild and no public exploit code.

Sources

Also known as GHSA-v4p4-cvg5-mj9g.