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[email protected]NVD:CVE-2019-12830

HistoryJun 15, 2019 - 6:29 p.m.

CVE-2019-12830

2019-06-1518:29:00

CWE-79

[email protected]

web.nvd.nist.gov

CVSS2

3.5

Attack Vector

NETWORK

Attack 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

CVSS3

8.7

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

AI Score

8.3

Confidence

High

EPSS

0.001

Percentile

28.9%

JSON

In MyBB before 1.8.21, an attacker can exploit a parsing flaw in the Private Message / Post renderer that leads to [video] BBCode persistent XSS to take over any forum account, aka a nested video MyCode issue.

Affected configurations

Nvd

Node

mybbmybbRange<1.8.21

VendorProductVersionCPE
mybbmybb*cpe:2.3:a:mybb:mybb:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
mybb	mybb	*	cpe:2.3:a:mybb:mybb::::::::

References

blog.mybb.com/2019/06/10/mybb-1-8-21-released-security-maintenance-release/

blog.ripstech.com/2019/mybb-stored-xss-to-rce/

CVSS2

3.5

Attack Vector

NETWORK

Attack 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

CVSS3

8.7

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

AI Score

8.3

Confidence

High

EPSS

0.001

Percentile

28.9%

JSON

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