CVE-2021-23824
When using attributes without quotes in the template, an attacker can manipulate the input to introduce additional attributes, potentially executing code.
Does this matter?
Lower severity and a low EPSS score (0.92%). Track it; it rarely justifies an emergency change on its own.
Description
This affects the package Crow before 0.3+4. When using attributes without quotes in the template, an attacker can manipulate the input to introduce additional attributes, potentially executing code. This may lead to a Cross-site Scripting (XSS) vulnerability, assuming an attacker can influence the value entered into the template. If the template is used to render user-generated content, this vulnerability may escalate to a persistent XSS vulnerability.
- CVSS 3.1
- 6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 0.92% probability · 58th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- crowcpp/crow
- Source
- report@snyk.io
References
- https://github.com/CrowCpp/Crow/pull/317Issue Tracking, Patch, Third Party Advisory
- https://github.com/CrowCpp/Crow/releases/tag/v0.3%2B4Release Notes, Third Party Advisory
- https://snyk.io/vuln/SNYK-UNMANAGED-CROW-2336164Exploit, Third Party Advisory
- https://github.com/CrowCpp/Crow/pull/317Issue Tracking, Patch, Third Party Advisory
- https://github.com/CrowCpp/Crow/releases/tag/v0.3%2B4Release Notes, Third Party Advisory
- https://snyk.io/vuln/SNYK-UNMANAGED-CROW-2336164Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.