CVE-2026-91999
📛 CVE Title
Apache Sling XSS: Improper escaping in the XSS Webconsole plugin
Description
Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Apache Sling XSS. This issue affects Apache Sling XSS: before 2.4.12. Users are recommended to upgrade to version 2.4.12, which fixes the issue.
Overview
- State
- PUBLISHED
- Assigner (CNA)
- apache
- CVSS severity
- —
- CVSS score
- —
- CVSS vector
- —
- Effective score
- 6.1 / 10 MEDIUM source: NVD
- CWE(s)
-
CWE-79 - Reserved
- 2026-09-15
- Published
- 2026-09-23 09:23 UTC
- Last updated
- 2026-09-23 17:08 UTC
- Source
- https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/91xxx/CVE-2026-91999.json
NVD triage scoring NVD CVE 2.0
Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.
- NVD published
- 2026-09-23 10:17:08 UTC
- NVD last modified
- 2026-09-23 17:58:26 UTC
- NVD CVSS v3.1
- 6.1 / 10 MEDIUM source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
- NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N- Exploitability subscore
- 2.8 / 10
- Impact subscore
- 2.7 / 10
- EPSS score
- 0.0020 (probability of exploitation in next 30 days)
- EPSS percentile
- 10.74% vs all CVEs — higher = more likely to be exploited, as of 2026-09-23
NVD / KEV / EPSS data refreshed 2026-09-24 04:30 UTC. Re-run the 🛰 Backfill from NVD button above to refresh.
European Union Vulnerability Database ENISA EUVD
ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.
- EUVD ID
-
EUVD-2026-85175 - Assigner
- apache
- Published
- Sep 23, 2026, 9:23:22 AM
- Updated
- Sep 23, 2026, 5:08:14 PM
- EUVD base score (CVSS 3.1)
-
6.1 / 10
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - EUVD-reported EPSS
- 0.2000
- Vendors
- Apache Software Foundation
- Products
-
Apache Sling XSS (0 <2.4.12)
- Aliases
-
GHSA-p3rj-cf34-r824
ENISA description: Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Apache Sling XSS. This issue affects Apache Sling XSS: before 2.4.12. Users are recommended to upgrade to version 2.4.12, which fixes the issue.
EUVD references (1)
Affected products (1)
| Vendor | Product | Versions | Platforms |
|---|---|---|---|
| Apache Software Foundation | Apache Sling XSS |
0 (affected)
|
— |
Vendor references (1)
References embedded in the original CVE record by the assigning CNA.
- https://lists.apache.org/thread/xpcsdkr80ow9p13f7hp3ykrhzky9d4t4 vendor-advisory
Web references (0)
DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.
No web references attached yet.
NVD-tagged references (2)
Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.
- http://www.openwall.com/lists/oss-security/2026/09/23/14 af854a3a-2127-422b-91ae-364da2661108
- https://lists.apache.org/thread/xpcsdkr80ow9p13f7hp3ykrhzky9d4t4 security@apache.org
Remediations (10)
-
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Raw JSON
The full cvelistV5 record. Download as CVE-2026-91999.json.
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