CVE-2023-46967Public exploitNetwork attack vector

Staff account takeover via post-sanitization HTML rewrite

Published Feb 20, 2024 · Updated Aug 6, 2024

Stored XSS in Enhancesoft osTicket 1.18.0 allows remote attackers to take over staff accounts via a crafted support ticket. Format::sanitize passes ticket HTML through Format::safe_html, then Format::localizeInlineImages uses an overbroad regular expression that deletes structural characters and restores executable attributes. Ticket submission requires no account, but execution requires an authenticated staff member to view the stored ticket; the script can read other tickets or reset the staff account.

CVSS severity6.1
Medium
EPSS probability0.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in Enhancesoft osTicket 1.18.0 allows remote attackers to take over staff accounts via a crafted support ticket. Format::sanitize passes ticket HTML through Format::safe_html, then Format::localizeInlineImages uses an overbroad regular expression that deletes structural characters and restores executable attributes. Ticket submission requires no account, but execution requires an authenticated staff member to view the stored ticket; the script can read other tickets or reset the staff account.

The record

CVE
CVE-2023-46967
Published
Feb 20, 2024
Updated
Aug 6, 2024
Vendor
Enhancesoft, LLC
Product
osTicket
Classifications
CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 20, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 6, 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=1.18.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Enhancesoft, LLC · osTicketversion=1.18.0

Published CVSS scores

6.1CISA ADP VulnrichmentCVSS: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')
T1203Exploitation for Client Execution

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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