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01 Record

CVE-2021-43802

Admin privilege escalation and arbitrary code execution via malicious *.etherpad imports

CriticalPUBLISHEDCNA: GitHub_M
CNA base score9.9 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
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02 Description

Admin privilege escalation and arbitrary code execution via malicious *.etherpad imports

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
2.06% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 81.1% of scored records. A rank, not a probability.
NVD base score
8.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

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
2021-12-09 22:35Z4 YR AGO
Last updated
2024-08-04 04:03Z2 YR AGO
Reserved
2021-11-16
Assigning CNA
GitHub_M
Record state
PUBLISHED
Severity
Critical (CVSS 9.9)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weaknesses
  • CWE-790Improper Filtering of Special ElementsClass
  • CWE-1287Improper Validation of Specified Type of InputBase
  • CWE-20Improper Input ValidationClass
Data version
5.1
Document digest
391c054d12f3e8726f206858b424a384a740aecc25b761962430709bf7224c66

05 Affected products

VendorProductVersionsPlatforms
etheretherpad-lite< 1.8.16—

06 References