Cross-site scripting via unsanitized share URL
Published Jan 9, 2023 · Updated Aug 3, 2024
Cross-site scripting in Kaltura mwEmbed 2.91 and earlier allows remote authenticated users to run script through a crafted share URL. The Share Plugin's share.js returns the res share URL without decoding and sanitizing attacker-controlled characters before page rendering. Exploitation requires the Share Plugin to be enabled and a user to open the crafted URL, allowing script execution in that user's browser context.
Summary
What happened
Cross-site scripting in Kaltura mwEmbed 2.91 and earlier allows remote authenticated users to run script through a crafted share URL. The Share Plugin's share.js returns the res share URL without decoding and sanitizing attacker-controlled characters before page rendering. Exploitation requires the Share Plugin to be enabled and a user to open the crafted URL, allowing script execution in that user's browser context.
The record
- CVE
- CVE-2022-4882
- Published
- Jan 9, 2023
- Updated
- Aug 3, 2024
- Vendor
- Kaltura
- Product
- mwEmbed
- Classifications
- CWE-79, T1203
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jan 9, 2023CVE publishedPublication date reported by the CVE source.
- Aug 3, 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.
- Affected versionversion=2.0
- Affected versionversion=2.1
- Affected versionversion=2.10
- Affected versionversion=2.11
- Affected versionversion=2.12
- Affected versionversion=2.13
- Affected versionversion=2.14
- Affected versionversion=2.15
- Affected versionversion=2.16
- Affected versionversion=2.17
- Affected versionversion=2.18
- Affected versionversion=2.19
- Affected versionversion=2.2
- Affected versionversion=2.20
- Affected versionversion=2.21
- Affected versionversion=2.22
- Affected versionversion=2.23
- Affected versionversion=2.24
- Affected versionversion=2.25
- Affected versionversion=2.26
- Affected versionversion=2.27
- Affected versionversion=2.28
- Affected versionversion=2.29
- Affected versionversion=2.3
- Affected versionversion=2.30
- Affected versionversion=2.31
- Affected versionversion=2.32
- Affected versionversion=2.33
- Affected versionversion=2.34
- Affected versionversion=2.35
- Affected versionversion=2.36
- Affected versionversion=2.37
- Affected versionversion=2.38
- Affected versionversion=2.39
- Affected versionversion=2.4
- Affected versionversion=2.40
- Affected versionversion=2.41
- Affected versionversion=2.42
- Affected versionversion=2.43
- Affected versionversion=2.44
- Affected versionversion=2.45
- Affected versionversion=2.46
- Affected versionversion=2.47
- Affected versionversion=2.48
- Affected versionversion=2.49
- Affected versionversion=2.5
- Affected versionversion=2.50
- Affected versionversion=2.51
- Affected versionversion=2.52
- Affected versionversion=2.53
- Affected versionversion=2.54
- Affected versionversion=2.55
- Affected versionversion=2.56
- Affected versionversion=2.57
- Affected versionversion=2.58
- Affected versionversion=2.59
- Affected versionversion=2.6
- Affected versionversion=2.60
- Affected versionversion=2.61
- Affected versionversion=2.62
- Affected versionversion=2.63
- Affected versionversion=2.64
- Affected versionversion=2.65
- Affected versionversion=2.66
- Affected versionversion=2.67
- Affected versionversion=2.68
- Affected versionversion=2.69
- Affected versionversion=2.7
- Affected versionversion=2.70
- Affected versionversion=2.71
- Affected versionversion=2.72
- Affected versionversion=2.73
- Affected versionversion=2.74
- Affected versionversion=2.75
- Affected versionversion=2.76
- Affected versionversion=2.77
- Affected versionversion=2.78
- Affected versionversion=2.79
- Affected versionversion=2.8
- Affected versionversion=2.80
- Affected versionversion=2.81
- Affected versionversion=2.82
- Affected versionversion=2.83
- Affected versionversion=2.84
- Affected versionversion=2.85
- Affected versionversion=2.86
- Affected versionversion=2.87
- Affected versionversion=2.88
- Affected versionversion=2.89
- Affected versionversion=2.9
- Affected versionversion=2.90
- Affected versionversion=2.91
What conditions does exploitation require?
What is affected?
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.
Weakness, pattern, technique
Public exploit references
- Encoded share URL XSS payloadproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
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