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TwcertCVE-2021-22849

HistoryJan 22, 2021 - 9:15 a.m.

CVE-2021-22849

2021-01-2209:15:13

CWE-79

twcert

web.nvd.nist.gov

cve-2021-22849

hyweb

hycms-j1

backend editing

stored xss

javascript injection

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

5.4

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

AI Score

5.2

Confidence

High

EPSS

0.001

Percentile

22.7%

JSON

Hyweb HyCMS-J1 backend editing function does not filter special characters. Users after log-in can inject JavaScript syntax to perform a stored XSS (Stored Cross-site scripting) attack.

Affected configurations

Nvd

Node

hywebhycms-j1Range≤7.4.3

VendorProductVersionCPE
hywebhycms-j1*cpe:2.3:a:hyweb:hycms-j1:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
hyweb	hycms-j1	*	cpe:2.3:a:hyweb:hycms-j1::::::::

CNA Affected

[
  {
    "product": "HyCMS-J1",
    "vendor": "Hyweb",
    "versions": [
      {
        "lessThanOrEqual": "7.4.3",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]

References

www.twcert.org.tw/tw/cp-132-4318-09cd3-1.html

Social References

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

5.4

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

AI Score

5.2

Confidence

High

EPSS

0.001

Percentile

22.7%

JSON

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