RegularLabs Tabs & Accordions (Pro) Extension up to 3.1.0 Tabs/Accordions window.open data-rlta-url cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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3.5$0-$5k0.99+

Summaryinfo

A vulnerability was found in RegularLabs Tabs & Accordions (Pro) Extension up to 3.1.0. It has been rated as problematic. This impacts the function window.open of the component Tabs/Accordions. Performing a manipulation of the argument data-rlta-url results in cross site scripting. This vulnerability is identified as CVE-2026-100751. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in RegularLabs Tabs & Accordions (Pro) Extension up to 3.1.0. It has been classified as problematic. This affects the function window.open of the component Tabs/Accordions. The manipulation of the argument data-rlta-url 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:

Joomla Extension - regularlabs.com - Privileged stored XSS via data-rlta-url attributes in Tabs & Accordions (Pro) 2.3.0 - 3.1.0 - Tabs & Accordions Pro accepts a url option for an item and writes it to a generated data-rlta-url attribute. The browser code passes that value to window.open() when the item is activated. Affected versions do not reject browser URL schemes which execute JavaScript. Joomla sees ordinary plugin syntax while filtering the authored article; Tabs & Accordions creates the executable browser behavior later while rendering the article.

It is possible to read the advisory at regularlabs.com. This vulnerability is uniquely identified as CVE-2026-100751 since 09/26/2026. 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 of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.5

VulDB Base Score: 3.5
VulDB Temp Score: 3.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

09/26/2026 CVE reserved
09/28/2026 +2 days Advisory disclosed
09/28/2026 +0 days VulDB entry created
09/28/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: regularlabs.com
Status: Not defined

CVE: CVE-2026-100751 (🔒)
GCVE (CVE): GCVE-0-2026-100751
GCVE (VulDB): GCVE-100-410991

Entryinfo

Created: 09/28/2026 09:25
Changes: 09/28/2026 09:25 (68)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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