synced 4 MIN AGO
01 Record

CVE-2023-6911

Multiple WSO2 products have been identified as vulnerable due to improper output encoding, a Stored Cross Site Scripting (XSS) attack can be carried out by an attacker injecting a malicious payload

MediumPUBLISHEDCNA: WSO2
CNA base score4.8 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
View raw JSON

02 Description

Multiple WSO2 products have been identified as vulnerable due to improper output encoding, a Stored Cross Site Scripting (XSS) attack can be carried out by an attacker injecting a malicious payload

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
0.40% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 34.5% of scored records. A rank, not a probability.
NVD base score
4.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
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
2023-12-18 08:32Z2 YR AGO
Last updated
2024-08-02 08:42Z2 YR AGO
Reserved
2023-12-18
Assigning CNA
WSO2
Record state
PUBLISHED
Severity
Medium (CVSS 4.8)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/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
5.1
Document digest
9cf0ce974a4ac712014e379f9b8d14d8d82164dc087de14afdb41c884f7134a5

05 Affected products

VendorProductVersionsPlatforms
WSO2WSO2 API Manager2.2.0.0 to < 2.2.0.1, 2.5.0.0 to < 2.5.0.1, 2.6.0.0 to < 2.6.0.1, 3.0.0.0 to < 3.0.0.1, 3.1.0.0 to < 3.1.0.1, 3.2.0.0 to < 3.2.0.1—
WSO2WSO2 API Manager Analytics2.2.0.0 to < 2.2.0.1, 2.5.0.0 to < 2.5.0.1—
WSO2WSO2 API Microgateway2.2.0.0 to < 2.2.0.1—
WSO2WSO2 Data Analytics Server3.2.0.0 to < 3.2.0.1—
WSO2WSO2 Enterprise Integrator6.1.0.0 to < 6.1.0.9, 6.1.1.0 to < 6.1.1.9, 6.2.0.0 to < 6.2.0.7, 6.3.0.0 to < 6.3.0.1, 6.4.0.0 to < 6.4.0.1, 6.5.0.0 to < 6.5.0.6, 6.6.0.0 to < 6.6.0.11—
WSO2WSO2 IS as Key Manager5.5.0.0 to < 5.5.0.1, 5.6.0.0 to < 5.6.0.1, 5.7.0.0 to < 5.7.0.1, 5.9.0.0 to < 5.9.0.1, 5.10.0.0 to < 5.10.0.1—
WSO2WSO2 Identity Server5.4.0.0 to < 5.4.0.4, 5.4.1.0 to < 5.4.1.3, 5.5.0.0 to < 5.5.0.1, 5.6.0.0 to < 5.6.0.1, 5.7.0.0 to < 5.7.0.1, 5.8.0.0 to < 5.8.0.5, 5.9.0.0 to < 5.9.0.1, 5.10.0.0 to < 5.10.0.1—
WSO2WSO2 Identity Server Analytics5.4.0.0 to < 5.4.0.2, 5.4.1.0 to < 5.4.1.2, 5.5.0.0 to < 5.5.0.1, 5.6.0.0 to < 5.6.0.1—
WSO2WSO2 Message Broker3.2.0.0 to < 3.2.0.3—

06 References

07 Remediation

For WSO2 Subscription holders, the recommended solution is to apply the provided patch/update to the affected versions of the products. If there are any instructions given with the patch/update, please make sure those are followed properly. Community users may apply the relevant fixes to the product based on the public fix(s) advertised in https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2021/WSO2-2020-1... https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2021/WSO2-2020-1225/