CVE-2021-21471Network attack vector

Authenticated integrity impact via unintended API access

Published Jan 12, 2021 · Updated Aug 3, 2024

Improper access control in SAP SE CLA Assistant before 2.8.5 allows remote authenticated users to alter application data through API requests. The server accepts an authenticated user's requests to API endpoints that the application does not intend that user to access; no affected routes or omitted check are public. A valid account is required, and the documented consequence is limited to application-integrity impact.

CVSS severity6.5
Medium
EPSS probability0.73%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in SAP SE CLA Assistant before 2.8.5 allows remote authenticated users to alter application data through API requests. The server accepts an authenticated user's requests to API endpoints that the application does not intend that user to access; no affected routes or omitted check are public. A valid account is required, and the documented consequence is limited to application-integrity impact.

The record

CVE
CVE-2021-21471
Published
Jan 12, 2021
Updated
Aug 3, 2024
Vendor
SAP SE
Product
CLA Assistant
Classifications
T1078
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 12, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 2.8.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

SAP SE · CLA Assistantversion=< 2.8.5

Published CVSS scores

6.5SAP SECVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
4.0NIST NVDAV:N/AC:L/Au:S/C:N/I:P/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1078Valid Accounts

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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