SecuriTricks - CVE-2021-47963

Description

Anote 1.0 contains a persistent cross-site scripting vulnerability that allows attackers to execute arbitrary code by injecting malicious payloads into markdown files stored within the application. Attackers can craft malicious markdown files with embedded JavaScript that executes system commands when opened, enabling remote code execution on the victim's computer.

Product(s) Impacted

Vendor	Product	Versions
Anote	Anote	1.0

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

*CPE(s)

Affected systems and software identified for this CVE.

Type	Vendor	Product	Version	Update	Edition	Language	Software Edition	Target Software	Target Hardware	Other Information
a	anote	anote	1.0	/	/	/	/	/	/	/

References

https://github.com/AnotherNote/anote

https://www.exploit-db.com/exploits/49836

https://www.vulncheck.com/advisories/anote-persistent-cross-site-scripting-remote-code-execution

CVSS Score

5.1 / 10

CVSS Data - 4.0

Attack Vector: NETWORK
Attack Complexity: LOW
Attack Requirements: NONE
Privileges Required: LOW
User Interaction: PASSIVE
Scope:
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: NONE
Exploit Maturity: NOT_DEFINED

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

View Vector String

Timeline

Published: May 15, 2026, 7:16 p.m.
Last Modified: May 15, 2026, 7:16 p.m.

Status : Received

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

[email protected]

CVE-2021-47963