CVE-2021-20562

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

0.95% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 58.6% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

2021-07-27 11:25Z5 YR AGO

Last updated

2024-09-16 16:48Z1 YR AGO

Reserved

2020-12-17

Assigning CNA

ibm

Record state

PUBLISHED

Severity

Medium (CVSS 5.4)

CNA CVSS vector

CVSS:3.0/AC:L/A:N/I:L/S:C/AV:N/PR:L/C:L/UI:R/RC:C/E:H/RL:O

Weaknesses

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

Data version

5.1

Document digest

501ea6f1b01425ebc4538148a6d2a47852da3cece0ea67968989063db31befb6

• www.ibm.comhttps://www.ibm.com/support/pages/node/6475301x_refsource_CONFIRM
• exchange.xforce.ibmcloud.comibm-sterling-cve202120562-xss (199232)https://exchange.xforce.ibmcloud.com/vulnerabilities/199232vdb-entryx_refsource_XF
• seclists.org20211104 SEC Consult SA-20211104-0 :: Reflected cross-site scripting vulnerability in IBM Sterling B2B Integratorhttp://seclists.org/fulldisclosure/2021/Nov/16mailing-listx_refsource_FULLDISC
• packetstormsecurity.comhttp://packetstormsecurity.com/files/164782/IBM-Sterling-B2B-Integrator-Cross-Site-Scripting.htmlx_refsource_MISC