CVE-2021-43787

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

1.31% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 70.5% of scored records. A rank, not a probability.

NVD base score

6.1 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

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.

Published

2021-11-29 19:30Z4 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 9.0)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

Weaknesses

• CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Base
• CWE-1321Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')Variant

Data version

5.1

Document digest

bc85b6abea0578a5ec51c9628bd60dee95131b484e5c74c3b542256b9d8e54bd

• github.comhttps://github.com/NodeBB/NodeBB/security/advisories/GHSA-wx69-rvg3-x7fcx_refsource_CONFIRM
• github.comhttps://github.com/NodeBB/NodeBB/commit/1783f918bc19568f421473824461ff2ed7755e4cx_refsource_MISC
• github.comhttps://github.com/NodeBB/NodeBB/releases/tag/v1.18.5x_refsource_MISC
• blog.sonarsource.comhttps://blog.sonarsource.com/nodebb-remote-code-execution-with-one-shot/x_refsource_MISC