Cross-site Scripting when rendering error messages in laminas-form

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

6.1 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS

• CVE-2022-23598: 0.99% estimated exploitation activity in the next 30 days; percentile 62.55 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

Impact When rendering validation error messages via the formElementErrors() view helper shipped with laminas-form, many messages will contain the submitted value. However, in vulnerable versions of laminas-form, the value was not being escaped for HTML contexts, which can potentially lead to a Reflected Cross-Site Scripting (XSS) attack. Patches The following versions were issued to mitigate the vulnerability: - 2.17.1 - 3.0.2 - 3.1.1 Workarounds At the top of a view script where you call the formElementErrors() view helper, place the following code: Before calling formElementErrors() with a form, fieldset, or element, call the above closure as follows For more information If you have any questions or comments about this advisory: Open an issue Email us at security@getlaminas.org

Published by the source

28 Jan 2022, 23:08 UTC

Last modified by the source

3 Feb 2023, 05:05 UTC

Source last checked

26 Oct 2026, 14:05 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-jq4p-mq33-w375

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# Patch Next advisory brief: CVE-2022-23598

Advisory: Cross-site Scripting when rendering error messages in laminas-form
IDs: CVE-2022-23598, GHSA-jq4p-mq33-w375
Record: https://patchnext.com/advisories/cve-2022-23598 (revision 1, source checked 26 Oct 2026, 14:05 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 6.1)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: laminas/laminas-form 3.1.1, 3.0.2, 2.17.1. A vendor fix does not mean a deployment is fixed.

## Affected components
- Packagist laminas/laminas-form: affected >= 3.1.0, < 3.1.1; >= 3.0.0, < 3.0.2; < 2.17.1; fixed in 3.0.2, 3.1.1, 2.17.1

## Suggested inspection (read-only)
- Packagist laminas/laminas-form: 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 laminas/laminas-form.
- 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-jq4p-mq33-w375 (GitHub-reviewed advisory GHSA-jq4p-mq33-w375 lists affected ranges: Packagist laminas/laminas-form >=3.1.0 =3.0.0 =0 <2.17.1)

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