CVE-2023-27636Public exploitNetwork attack vector

Stored XSS via unsanitized SF Editor content

Published Jun 16, 2024 · Updated Aug 2, 2024

Stored XSS in Progress Sitefinity CMS before 15.0.0 allows remote authenticated users to execute script via SF Editor content. SF Editor saves attacker-supplied iframe JavaScript entered as HTML in a content form and renders it without neutralization when the item is viewed. A lower-privileged backend account must save or publish the content, and execution occurs in a viewing user's browser.

CVSS severity5.4
Medium
EPSS probability1.29%
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 Progress Sitefinity CMS before 15.0.0 allows remote authenticated users to execute script via SF Editor content. SF Editor saves attacker-supplied iframe JavaScript entered as HTML in a content form and renders it without neutralization when the item is viewed. A lower-privileged backend account must save or publish the content, and execution occurs in a viewing user's browser.

The record

CVE
CVE-2023-27636
Published
Jun 16, 2024
Updated
Aug 2, 2024
Vendor
Progress Software Corporation
Product
Sitefinity CMS
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 16, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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=0 <15.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Progress Software Corporation · Sitefinity CMSversion=0 <15.0.0

Published CVSS scores

6.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
5.4NIST NVDCVSS: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 exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007JavaScript/JScript

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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