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NVD / CVE Program· CNA WSO2

CVE-2023-6838: Reflected XSS vulnerability can be exploited by tampering a request parameter in Authentication Endpoint.

Noroxi assessment

Priority: Monitor (action score 24/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.43% (FIRST EPSS).
  • Anyone who can reach it over the internet can trigger it. No account or password is required. A user must open a link or visit a page. No special conditions are required; it is repeatable.
  • According to the record, no fixed version is available yet.

Low priority for now. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Reflected XSS vulnerability can be exploited by tampering a request parameter in Authentication Endpoint. This can be performed in both authenticated and unauthenticated requests.

MediumCVSS 6.1 · v3.1—No exploit No fix recorded
Published
Dec 15, 2023
Updated
Jun 17, 2026
EPSS
0.4% · 37th percentile

Report tools

JSON

Action score

24

Monitor

Low priority for now.

CVSS
24 / 40 · 6.1 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.4%

CNA vs NVD score

NVD
6.1
CNA · WSO2
6.1
agree

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2023-6838

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
wso2api manager
wso2identity server as key manager
wso2identity server

Limit the impact of XSS

This is a cross-site scripting (XSS) vulnerability. A well-configured Content-Security-Policy doesn't fix it, but greatly reduces its impact. Check your site's CSP and other security headers for free.

Check security headers

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • wso2 api manager3.1.0
  • wso2 api manager3.2.0
  • wso2 identity server5.10.0
  • wso2 identity server as key manager5.10.0

Versions reported by the vendor

Affected version ranges reported by the assigning authority (WSO2). Independent of NVD's CPE analysis and usually ahead of it.

  • WSO2 WSO2 API Manager

    • before 3.1.0.0unknown
    • 3.1.0.0 and later · before 3.1.0.14affected
    • 3.2.0.0 and later · before 3.2.0.10affected

  • WSO2 WSO2 Identity Server

    • before 5.10.0.0unknown
    • 5.10.0.0 and later · before 5.10.0.5affected

  • WSO2 WSO2 IS as Key Manager

    • before 5.10.0.0unknown
    • 5.10.0.0 and later · before 5.10.0.5affected

Same product

wso2: all records

Other highest-scoring records for the same primary product.

  • CVE-2022-29464Certain WSO2 products allow unrestricted file upload with resultant remote code execution.KEV
    99Now
  • CVE-2020-24589The Management Console in WSO2 API Manager through 3.1.0 and API Microgateway 2.2.0 allows XML External Entity injection (XXE) attacks.
    44Plan
  • CVE-2026-2053Unauthenticated Server-Side Request Forgery via WS-Addressing in WSO2 API Manager
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2023-6836Dec 15, 2023 · Multiple WSO2 products have been identified as vulnerable due to an XML External Entity (XXE) attack abuses a widely available but rarely us
    30Monitor
  • ← EarlierCVE-2023-6837Dec 15, 2023 · Incorrect Authorization in Multiple WSO2 Products via Federated Authentication with JIT Provisioning Leading to User Impersonation
    32Monitor
  • Later →CVE-2023-6839Dec 15, 2023 · Due to improper error handling, a REST API resource could expose a server side error containing an internal WSO2 specific package name in th
    21Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2023-31664207 days apartA reflected cross-site scripting (XSS) vulnerability in /authenticationendpoint/login.do of WSO2 API Manager before 4.2.0 allows attackers t
    24Monitor
  • CVE-2024-5848440 days apartReflected Cross-Site Scripting (XSS) in Multiple WSO2 Products Due to Improper Input Validation
    24Monitor
  • CVE-2024-5962524 days apartReflected Cross-Site Scripting (XSS) in Authentication Endpoint of Multiple WSO2 Products Due to Missing Output Encoding
    24Monitor
  • CVE-2024-8008535 days apartReflected Cross-Site Scripting (XSS) in Multiple WSO2 Products via JDBC User Store Connection Validation
    20Monitor
  • CVE-2023-69113 days apartMultiple WSO2 products have been identified as vulnerable due to improper output encoding, a Stored Cross Site Scripting (XSS) attack can be
    19Monitor
  • CVE-2024-3509535 days apartStored Cross-Site Scripting (XSS) in Management Console of Multiple WSO2 Products via Rich Text Editor
    17Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • A user must open a link or visit a page.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
low · data can be read
Integrity
low · data or configuration can be modified
Availability
none

Impact can extend beyond the vulnerable component (scope changes).

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Changed
Confidentiality impact
Low
Integrity impact
Low
Availability impact
None

Weakness class (CWE)

CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

nvd-primary

Root cause

User content is inserted into the page as HTML. The browser interprets the content as code rather than data.

The bug in code

The whole CWE-79 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

ts
commentEl.innerHTML = comment.body;

Fixed

ts
commentEl.textContent = comment.body;

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records