CVE-2022-39834Known exploitationNetwork attack vector

Stored XSS via unescaped JSP output

Published Nov 17, 2022 · Updated Apr 29, 2025

Stored cross-site scripting in PrimeKey EJBCA through 7.9.0.2 allows low-privilege users to affect higher-privilege administrators via the Admin Web. The addendentity.jsp path stores attacker-controlled fields, and viewendentity.jsp renders those values without adequate output escaping, causing script execution when an administrator views the record. Exploitation requires an authenticated low-privilege account able to create or edit an end entity and a higher-privilege administrator to view the affected page; the demonstrated impact is cross-site data access and actions in that administrator's browser context.

CVSS severity5.4
Medium
EPSS probability0.35%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored cross-site scripting in PrimeKey EJBCA through 7.9.0.2 allows low-privilege users to affect higher-privilege administrators via the Admin Web. The addendentity.jsp path stores attacker-controlled fields, and viewendentity.jsp renders those values without adequate output escaping, causing script execution when an administrator views the record. Exploitation requires an authenticated low-privilege account able to create or edit an end entity and a higher-privilege administrator to view the affected page; the demonstrated impact is cross-site data access and actions in that administrator's browser context.

The record

CVE
CVE-2022-39834
Published
Nov 17, 2022
Updated
Apr 29, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1189
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 17, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 29, 2025Exploitation reportedNo exploitation reported in CISA SSVC assessment
  3. Apr 29, 2025Record 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 privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.4NISTCVSS:3.1/AV:N/AC:L/PR:L/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
Privilegesauthenticated
Known exploitationReported
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1189Drive-by Compromise

Public exploit references

No public exploit references are available in this record.

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

Reported exploitation

Technologies

Your stack

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Your stack

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