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01 Record

CVE-2021-21476

SAP UI5 versions before 1.38.49, 1.52.49, 1.60.34, 1.71.31, 1.78.18, 1.84.5, 1.85.4, 1.86.1 allows an unauthenticated attacker to redirect users to a malicious site due to Reverse Tabnabbing

MediumPUBLISHEDCNA: sap
CNA base score4.7 CVSS v3.xCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N

02 Description

SAP UI5 versions before 1.38.49, 1.52.49, 1.60.34, 1.71.31, 1.78.18, 1.84.5, 1.85.4, 1.86.1 allows an unauthenticated attacker to redirect users to a malicious site due to Reverse Tabnabbing

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
0.81% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 56.6% 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.

04 Metadata

Published
2021-02-09 20:44Z5 YR AGO
Last updated
2024-08-03 18:16Z2 YR AGO
Reserved
2020-12-30
Assigning CNA
sap
Record state
PUBLISHED
Severity
Medium (CVSS 4.7)
CNA CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N
Weaknesses
  • CWE-601URL Redirection to Untrusted Site ('Open Redirect')Base
Data version
5.1
Document digest
7802f5e5b54abd01d849391a5ff79f332f71a6796c4db3f091aae53da86918e0

05 Affected products

VendorProductVersionsPlatforms
SAP SESAP UI5< 1.38.49, < 1.52.49, < 1.60.34, < 1.71.31, < 1.78.18, < 1.84.5, < 1.85.4, < 1.86.1—

06 References