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MEDIUM severity

CVE-2023-22849 — org.apache.sling.cms

MEDIUM

CVE-2023-22849 is a medium-severity (CVSS 6.1) Cross-site Scripting (XSS) vulnerability in org.apache.sling:org.apache.sling.cms. A fix is available for org.apache.sling:org.apache.sling.cms — see the affected versions and patch details below.

Apache Sling App CMS: XSS in CMS Reference / UI Components

Also known asGHSA-rghh-ghf7-7943
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Oct 31, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2023-22849.

EPSS Exploitation Probability

via FIRST.org ↗
1.4%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs73th percentile — riskier than 73% of all scored CVEsHighest risk
0.00%0.65%1.30%1.94%0.4%1.4%May 26Aug 26Oct 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected
☕org.apache.sling:org.apache.sling.cms

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

Description

An improper neutralization of input during web page generation ('Cross-site Scripting') [CWE-79] vulnerability in Sling App CMS version 1.1.4 and prior may allow an authenticated remote attacker to perform a reflected cross-site scripting (XSS) attack in multiple features.

Upgrade to Apache Sling App CMS >= 1.1.6

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
☕Mavenorg.apache.sling:org.apache.sling.cmsall versions1.1.6org.apache.sling:org.apache.sling.cms:1.1.6

Affected Products

1 product · 1 configurations
Application
sling cmsapache
< 1.1.6
range

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.apache.sling:org.apache.sling.cms, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update org.apache.sling:org.apache.sling.cms to 1.1.6 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2023-22849 is resolved across your whole dependency graph.

  3. Workarounds

    Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.

Frequently Asked Questions

An improper neutralization of input during web page generation ('Cross-site Scripting') [CWE-79] vulnerability in Sling App CMS version 1.1.4 and prior may allow an authenticated remote attacker to perform a reflected cross-site scripting (XSS) attack in multiple features. Upgrade to Apache Sling App CMS >= 1.1.6
O3 Security · Impact-Aware SCA

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CVE-2023-22849: org.apache.sling XSS — Fixed in 1.1.6