Drupal SAML SSO up to 3.1.x cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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3.4$0-$5k1.65-

Summaryinfo

A vulnerability was found in Drupal SAML SSO up to 3.1.x. It has been rated as problematic. This affects an unknown function. Performing a manipulation results in cross site scripting. This vulnerability was named CVE-2026-87948. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Drupal SAML SSO up to 3.1.x. It has been classified as problematic. This affects an unknown function. The manipulation 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:

Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting") vulnerability in Drupal SAML SSO - Service Provider allows Cross-Site Scripting (XSS). This issue affects SAML SSO - Service Provider versions: from 0.0.0 to 3.2.0.

It is possible to read the advisory at drupal.org. This vulnerability is uniquely identified as CVE-2026-87948 since 09/09/2026. 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. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

Upgrading to version 3.2.0 eliminates this vulnerability.

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

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
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: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: SAML SSO 3.2.0

Timelineinfo

09/09/2026 CVE reserved
10/22/2026 +43 days Advisory disclosed
10/22/2026 +0 days VulDB entry created
10/22/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: drupal.org

Advisory: drupal.org
Status: Confirmed

CVE: CVE-2026-87948 (🔒)
GCVE (CVE): GCVE-0-2026-87948
GCVE (VulDB): GCVE-100-425103

Entryinfo

Created: 10/22/2026 04:11
Changes: 10/22/2026 04:11 (54)
Complete: 🔍
Cache ID: 216::103

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