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XXE in Apache Standard Taglibs

CVE-2015-0254GHSA-6x4w-8w53-xrvv

What to do

Vendor fix available. Upgrade each affected package to the fixed version on its release line (org.apache.taglibs:taglibs-standard-impl 1.2.3; org.apache.taglibs:taglibs-standard 1.2.3), 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
not scored
EPSS
  • CVE-2015-0254: 12.04% estimated exploitation activity in the next 30 days; percentile 96.14 (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.

Apache Standard Taglibs before 1.2.3 allows remote attackers to execute arbitrary code or conduct external XML entity (XXE) attacks via a crafted XSLT extension in a (1) <x:parse or (2) <x:transform JSTL XML tag.

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

    Published from ghsa record GHSA-6x4w-8w53-xrvv

Agent brief

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# Patch Next advisory brief: CVE-2015-0254

Advisory: XXE in Apache Standard Taglibs
IDs: CVE-2015-0254, GHSA-6x4w-8w53-xrvv
Record: https://patchnext.com/advisories/cve-2015-0254 (revision 1, source checked 26 Oct 2026, 16:06 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Unrated
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: org.apache.taglibs:taglibs-standard-impl 1.2.3; org.apache.taglibs:taglibs-standard 1.2.3. A vendor fix does not mean a deployment is fixed.

## Affected components
- Maven org.apache.taglibs:taglibs-standard-impl: affected < 1.2.3; fixed in 1.2.3
- Maven org.apache.taglibs:taglibs-standard: affected < 1.2.3; fixed in 1.2.3

## Suggested inspection (read-only)
- Maven org.apache.taglibs:taglibs-standard-impl: check the installed version with your package manager.
- Maven org.apache.taglibs:taglibs-standard: 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 org.apache.taglibs:taglibs-standard-impl, org.apache.taglibs:taglibs-standard.
- 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-6x4w-8w53-xrvv (GitHub-reviewed advisory GHSA-6x4w-8w53-xrvv lists affected ranges: Maven org.apache.taglibs:taglibs-standard >=0 =0 <1.2.3)

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