Ultimate Before After Image Slider & Gallery Plugin Client Script cross site scripting

Summaryinfo

A vulnerability was found in Ultimate Before After Image Slider & Gallery Plugin up to 4.7.18. It has been rated as problematic. Affected by this vulnerability is an unknown functionality of the component Client Script. Performing a manipulation of the argument afterlabel results in cross site scripting. This vulnerability was named CVE-2025-15663. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in Ultimate Before After Image Slider & Gallery Plugin up to 4.7.18. It has been classified as problematic. This affects an unknown function of the component Client Script. The manipulation of the argument afterlabel with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. The summary by CVE is:

The Ultimate Before After Image Slider & Gallery WordPress plugin before 4.7.19 does not properly escape the slider's after-label value before its bundled client-side script re-injects it into the DOM, allowing users with the Author role and above to store a payload that executes in the browser of anyone (including an administrator) who views the slider.

The advisory is shared at wpscan.com. This vulnerability is uniquely identified as CVE-2025-15663 since 06/23/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

Upgrading to version 4.7.19 eliminates this vulnerability.

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Productinfo

Type

• WordPress Plugin

Name

• Ultimate Before After Image Slider & Gallery Plugin

Version

• 4.7.0
• 4.7.1
• 4.7.2
• 4.7.3
• 4.7.4
• 4.7.5
• 4.7.6
• 4.7.7
• 4.7.8
• 4.7.9
• 4.7.10
• 4.7.11
• 4.7.12
• 4.7.13
• 4.7.14
• 4.7.15
• 4.7.16
• 4.7.17
• 4.7.18

CPE 2.3info

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CPE 2.2info

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