CVE-2023-40809Public exploitNetwork attack vector

Stored HTML injection via unsanitized activity fields

Published Nov 18, 2023 · Updated Aug 10, 2024

HTML injection in openCRX 5.2.0 allows remote attackers to alter rendered saved-search content through crafted activity fields. The Saved Search Activity form stores markup supplied in its Name, Description, and Activity Number fields and renders that markup without neutralization. Exploitation requires access to the web application's guest account and user interaction with the saved activity; observed impact is limited to rendered content.

CVSS severity6.1
Medium
EPSS probability0.46%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

HTML injection in openCRX 5.2.0 allows remote attackers to alter rendered saved-search content through crafted activity fields. The Saved Search Activity form stores markup supplied in its Name, Description, and Activity Number fields and renders that markup without neutralization. Exploitation requires access to the web application's guest account and user interaction with the saved activity; observed impact is limited to rendered content.

The record

CVE
CVE-2023-40809
Published
Nov 18, 2023
Updated
Aug 10, 2024
Vendor
openCRX
Product
openCRX
Classifications
CWE-79, CWE-94, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 18, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 10, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.2.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

openCRX · openCRXversion=5.2.0

Published CVSS scores

6.1CISA-ADPCVSS: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.

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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')
CWE-94Improper Control of Generation of Code ('Code Injection')
T1190Exploit Public-Facing Application

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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