SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-25964

In “Calibre-web” application, v0.6.0 to v0.6.12, are vulnerable to Stored XSS in “Metadata”.

MEDIUM 5.4EPSS 0.55%

Does this matter?

Lower severity and a low EPSS score (0.55%). Track it; it rarely justifies an emergency change on its own.

Description

In “Calibre-web” application, v0.6.0 to v0.6.12, are vulnerable to Stored XSS in “Metadata”. An attacker that has access to edit the metadata information, can inject JavaScript payload in the description field. When a victim tries to open the file, XSS will be triggered.

CVSS 3.1
5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS
0.55% probability · 46th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-79
Affected
janeczku/calibre-web
Source
vulnerabilitylab@mend.io
EPSS trend
0%3%5%26 October 2026: 0.55%26 October 202626 October 2026

EPSS 0.5% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.