CVE-2020-9344Public exploitNetwork attack vector

Script execution via unsanitized Web Client parameters

Published Mar 20, 2020 · Updated Aug 4, 2024

Reflected XSS in Marketplace Expert SL Subversion ALM before 8.8.2 allows remote attackers to run script through crafted URLs. The built-in Web Client passes unsanitized URL parameters into internal-error message dialogs that the browser renders as executable markup. Exploitation requires a user to open a crafted link; the script then runs in that user's Jira browser context, enabling page-data access and actions with that session.

CVSS severity6.1
Medium
EPSS probability5.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in Marketplace Expert SL Subversion ALM before 8.8.2 allows remote attackers to run script through crafted URLs. The built-in Web Client passes unsanitized URL parameters into internal-error message dialogs that the browser renders as executable markup. Exploitation requires a user to open a crafted link; the script then runs in that user's Jira browser context, enabling page-data access and actions with that session.

The record

CVE
CVE-2020-9344
Published
Mar 20, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 20, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.3NIST NVDAV:N/AC:M/Au:N/C:N/I:P/A:N
6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1204.001Malicious Link

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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