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01 Record

CVE-2021-21353

Remote code execution in pug

MediumPUBLISHEDCNA: GitHub_M
CNA base score6.8 CVSS v3.xCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N
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02 Description

Remote code execution in pug

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
4.30% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 90.7% of scored records. A rank, not a probability.
NVD base score
9.0 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
NVD analysis status
Analyzed. NVD last modified this record on 2026-06-17.
Red Hat severity
Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2021-03-03 01:50Z5 YR AGO
Last updated
2025-04-16 22:10Z1 YR AGO
Reserved
2020-12-22
Assigning CNA
GitHub_M
Record state
PUBLISHED
Severity
Medium (CVSS 6.8)
CNA CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N
Weaknesses
  • CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')Class
  • CWE-94Improper Control of Generation of Code ('Code Injection')Base
  • CWE-1336Improper Neutralization of Special Elements Used in a Template EngineBase
Data version
5.1
Document digest
a12486984895aef7cfedd786cca61f1656201013a2c1c478d0dffabfb05b8ece

05 Affected products

VendorProductVersionsPlatforms
pugjspug< 3.0.1—

06 References