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CVE-2023-6836

Multiple WSO2 products have been identified as vulnerable due to an XML External Entity (XXE) attack abuses a widely available but rarely…

Medium4.6EPSS 0.48%
Published
Updated
Reserved
Assigned by
WSO2

Description

Multiple WSO2 products have been identified as vulnerable due to an XML External Entity (XXE) attack abuses a widely available but rarely used feature of XML parsers to access sensitive information.

Timeline

  1. ID reserved

    By WSO2

  2. Published

  3. · 8 months later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2023-6836, by who scored it
Scored byCVSSScoreVector
WSO2CNA (assigner)3.1Medium4.6CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
NVDNVD · Modified3.1High7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS (exploitation in 30 days)
0.48% · top 58% of all CVEs (7 Nov 2026)
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.6.

Weakness

Affected products

Affected packages

From reviewed advisories of the GitHub Advisory Database.

What to do

Solution: 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/WSO2-2020-0716/ https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2021/WSO2-2020-0716/

References (1)

Sources

The same CVE in the primary databases and aggregators, to check against.

Badge for a README or a ticket

CVE-2023-6836 badge
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Record last updated .