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CVE-2021-47837: Improper Neutralization of Input During Web Page Generation

🗓️ 16 Jan 2026 00:00:00Reported by Rapid7Type 
rapid7
 rapid7
🔗 www.rapid7.com

Persistent XSS in Markdownify 1.2.0 via markdown files allowing remote code execution.

Related
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2021-47837
16 Jan 202619:09
–attackerkb
circl
Circl
CVE-2021-47837
16 Jan 202620:22
–circl
cnnvd
CNNVD
Markdownify security vulnerabilities
16 Jan 202600:00
–cnnvd
cve
CVE
CVE-2021-47837
16 Jan 202619:09
–cve
cvelist
Cvelist
CVE-2021-47837 Markdownify 1.2.0 - Persistent Cross-Site Scripting
16 Jan 202619:09
–cvelist
euvd
EUVD
EUVD-2026-2886
16 Jan 202619:09
–euvd
nvd
NVD
CVE-2021-47837
16 Jan 202619:16
–nvd
osv
OSV
CVE-2021-47837
16 Jan 202619:16
–osv
ptsecurity
Positive Technologies
PT-2026-3292
16 Jan 202600:00
–ptsecurity
snyk
Snyk
Cross-site Scripting (XSS)
16 Jan 202619:54
–snyk
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15 Apr 2026 00:00Current
6.1Medium risk
Vulners AI Score6.1
CVSS 45.1
CVSS 3.17.2
EPSS0.00451
SSVC
0