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PRIOn knowledge basePRION:CVE-2021-27279

HistoryFeb 22, 2021 - 8:15 p.m.

Design/Logic Flaw

2021-02-2220:15:00

PRIOn knowledge base

www.prio-n.com

5.4 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

3.5 Low

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:S/C:N/I:P/A:N

0.001 Low

EPSS

Percentile

24.4%

JSON

MyBB before 1.8.25 allows stored XSS via nested [email] tags with MyCode (aka BBCode).

CPENameOperatorVersion
mybblt1.8.25

CPE	Name	Operator	Version
	mybb	lt	1.8.25

References

github.com/mybb/mybb/commit/cb781b49116bf5c4d8deca3e17498122b701677a

github.com/mybb/mybb/security/advisories/GHSA-6483-hcpp-p75w

mybb.com/versions/1.8.25/

5.4 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

3.5 Low

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:S/C:N/I:P/A:N

0.001 Low

EPSS

Percentile

24.4%

JSON

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