CVE-2021-35240

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

1.07% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 62.6% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/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

2021-08-31 15:57Z5 YR AGO

Last updated

2024-08-04 00:33Z2 YR AGO

Reserved

2021-06-22

Assigning CNA

SolarWinds

Record state

PUBLISHED

Severity

Medium (CVSS 6.5)

CNA CVSS vector

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

Weaknesses

• CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Base

Data version

5.1

Document digest

90fd1143901190772d2aca40fe335218004f17be9ee303e732d52356d4bd4a59

• documentation.solarwinds.comhttps://documentation.solarwinds.com/en/success_center/orionplatform/content/core-secure-configuration.htmx_refsource_MISC
• support.solarwinds.comhttps://support.solarwinds.com/SuccessCenter/s/article/Orion-Platform-2020-2-6-Hotfix-1?language=en_USx_refsource_MISC
• www.solarwinds.comhttps://www.solarwinds.com/trust-center/security-advisories/cve-2021-35240x_refsource_MISC
• support.solarwinds.comhttps://support.solarwinds.com/SuccessCenter/s/article/Mitigate-the-Stored-XSS-via-Help-Server-setting-CVE-2021-35240?language=en_USx_refsource_MISC