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01 Record

CVE-2023-6835

Multiple WSO2 products have been identified as vulnerable due to lack of server-side input validation in the Forum feature, API rating could be manipulated.

MediumPUBLISHEDCNA: WSO2
CNA base score4.3 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

02 Description

Multiple WSO2 products have been identified as vulnerable due to lack of server-side input validation in the Forum feature, API rating could be manipulated.

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
0.52% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 43.9% of scored records. A rank, not a probability.
NVD base score
5.3 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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
2023-12-15 09:16Z2 YR AGO
Last updated
2024-08-02 08:42Z2 YR AGO
Reserved
2023-12-15
Assigning CNA
WSO2
Record state
PUBLISHED
Severity
Medium (CVSS 4.3)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Weaknesses
  • CWE-20Improper Input ValidationClass
Data version
5.1
Document digest
cb3a900780e880a9c03d462afb8b573ccaa480d921f4906675eda1e7c0110b22

05 Affected products

VendorProductVersionsPlatforms
WSO2WSO2 API Manager2.2.0.0 to < 2.2.0.16, 2.5.0.0 to < 2.5.0.17, 2.6.0.0 to < 2.6.0.24—
WSO2WSO2 IoT Server3.3.1.0 to < 3.3.1.17—

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/WSO2-2021-1... https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2021/WSO2-2021-1357/