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Zulip is an open-source team collaboration tool. Versions 2.1.0 through and including 5.2 are vulnerable to a logic error. A stream configured as private with protected history, where new subscribers should not be allowed to see messages sent before they were subscribed, when edited causes the server to incorrectly send an API event that includes the edited message to all of the stream’s current subscribers. This API event is ignored by official clients, but can be observed by using a modified client or the browser’s developer tools. This bug will be fixed in Zulip Server 5.3. There are no known workarounds.
Publish Date : 2022-06-25 Last Update Date : 2022-07-07
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CVSS Scores & Vulnerability Types
CVSS Score |
2.1 |
Confidentiality Impact |
Partial
(There is considerable informational disclosure.) |
Integrity Impact |
None
(There is no impact to the integrity of the system) |
Availability Impact |
None
(There is no impact to the availability of the system.) |
Access Complexity |
High
(Specialized access conditions exist. It is hard to exploit and several special conditions must be satisfied to exploit) |
Authentication |
??? |
Gained Access |
None |
Vulnerability Type(s) |
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CWE ID |
571 |
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Products Affected By CVE-2022-31017
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Number Of Affected Versions By Product
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References For CVE-2022-31017
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Metasploit Modules Related To CVE-2022-31017
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