01 Record
CVE-2026-11854
Cross-Site Scripting via Authentication Endpoint Error Message in Multiple WSO2 Products
MediumPUBLISHEDCNA: WSO2
CNA base score6.1 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
02 Description
Cross-Site Scripting via Authentication Endpoint Error Message in Multiple WSO2 Products
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- Not scored by EPSS
- EPSS percentile
- Not scored by EPSS
- NVD base score
- 6.1 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- NVD analysis status
- Received. NVD last modified this record on 2026-10-29.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-10-28 19:21Z15 HR AGO
- Last updated
- 2026-10-29 02:02Z8 HR AGO
- Reserved
- 2026-06-10
- Assigning CNA
- WSO2
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 6.1)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- Weaknesses
- CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Base
- Data version
- 5.2
- Document digest
- eaed53c60865b59a10d0ab674f15445ee81fe5e31aaf4b397106c38498a1525e
05 Affected products
VendorProductVersionsPlatforms
WSO2WSO2 API Manager3.2.0 to < 3.2.0.480, 3.2.1 to < 3.2.1.99, 4.1.0 to < 4.1.0.265, 4.2.0 to < 4.2.0.205, 4.3.0 to < 4.3.0.117, 4.4.0 to < 4.4.0.80, 4.5.0 to < 4.5.0.65, 4.6.0 to < 4.6.0.29, 4.7.0 to < 4.7.0.1—
WSO2WSO2 Identity Server5.10.0 to < 5.10.0.399, 5.11.0 to < 5.11.0.446, 6.0.0 to < 6.0.0.272, 6.1.0 to < 6.1.0.274, 7.0.0 to < 7.0.0.155, 7.1.0 to < 7.1.0.65, 7.2.0 to < 7.2.0.26—
06 References
07 Remediation
Follow the instructions given on https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2025-4850/#solution