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Low, CVSS 1.1

Drupal Simple multi step form allows Cross-Site Scripting

CVE-2025-12761GHSA-gg35-374m-9ph8

What to do

Vendor fix available. Upgrade each affected package to the fixed version on its release line (drupal/simple_multistep 2.0.0), redeploy, then verify what is actually installed.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

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Affected packages

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS 4.0
1.1 · CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U · score source
EPSS
  • CVE-2025-12761: 0.19% estimated exploitation activity in the next 30 days; percentile 8.27 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.
Source description

As published by the source; long descriptions are shortened.

Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting") vulnerability in Drupal Simple multi step form allows Cross-Site Scripting (XSS).This issue affects Simple multi step form: from 0.0.0 before 2.0.0.

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 1 · created ·

    Published from ghsa record GHSA-gg35-374m-9ph8

Agent brief

Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.

# Patch Next advisory brief: CVE-2025-12761

Advisory: Drupal Simple multi step form allows Cross-Site Scripting
IDs: CVE-2025-12761, GHSA-gg35-374m-9ph8
Record: https://patchnext.com/advisories/cve-2025-12761 (revision 1, source checked 26 Oct 2026, 14:34 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Low (CVSS 1.1)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: drupal/simple_multistep 2.0.0. A vendor fix does not mean a deployment is fixed.

## Affected components
- Packagist drupal/simple_multistep: affected < 2.0.0; fixed in 2.0.0

## Suggested inspection (read-only)
- Packagist drupal/simple_multistep: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on drupal/simple_multistep.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-gg35-374m-9ph8 (GitHub-reviewed advisory GHSA-gg35-374m-9ph8 lists affected ranges: Packagist drupal/simple_multistep >=0 <2.0.0)

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