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AUSCERT External Security Bulletin Redistribution
ESB-2020.0248
MSA-20-0001: Stored XSS in message conversation overview
24 January 2020
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AusCERT Security Bulletin Summary
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Product: Moodle
Publisher: Moodle
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Cross-site Scripting -- Existing Account
Resolution: Mitigation
CVE Names: CVE-2020-1691
Original Bulletin:
https://moodle.org/mod/forum/discuss.php?d=395953&parent=1596360
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MSA-20-0001: Stored XSS in message conversation overview
Messages required extra sanitizing before updating the conversation overview,
to prevent the risk of stored XSS.
Severity/Risk: Serious
Versions affected: 3.8
Versions fixed: 3.8.1
Reported by: Cid da Costa
Workaround: Disable the messaging system until the patch has been applied.
CVE identifier: CVE-2020-1691
Changes (master): http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-67637
Tracker issue: MDL-67637 Stored XSS in message conversation overview
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