CVE-2023-42479 — An unauthenticated attacker can embed a hidden access to a Biller Direct URL in

An unauthenticated attacker can embed a hidden access to a Biller Direct URL in a frame which, when loaded by the user, will submit a cross-site scripting request to the Biller Direct system. This can result in the disclosure or modification of non-sensitive information.

01What is this vulnerability?

An unauthenticated attacker can embed a hidden access to a Biller Direct URL in a frame which, when loaded by the user, will submit a cross-site scripting request to the Biller Direct system. This can result in the disclosure or modification of non-sensitive information.

02Affected products

Vendor	Product	Versions
SAP_SE	SAP Biller Direct	635, 750

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

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07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-12-12T00:59:36.906Z
• Last modified: 2024-11-26T14:33:56.259Z

09References

• me.sap.com — https://me.sap.com/notes/3383321
• www.sap.com — https://www.sap.com/documents/2022/02/fa865ea4-167e-0010-bca6-c68f7e60039b.html