SARA / Free Tools / CVE / CVE-2020-1173

CVE-2020-1173 — A spoofing vulnerability exists in Microsoft Power BI Report Server in the way i

A spoofing vulnerability exists in Microsoft Power BI Report Server in the way it validates the content-type of uploaded attachments. An authenticated attacker could exploit the vulnerability by uploading a specially crafted payload and sending it to the user. The attacker who su

CVSS
6.8 MEDIUM
EPSS
2.39% (top 17.40%)
CWE
—
Published
2020-05-21T23:15:17.960
Last modified
2026-08-19T17:17:28.987
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:N

01What is this vulnerability?

A spoofing vulnerability exists in Microsoft Power BI Report Server in the way it validates the content-type of uploaded attachments. An authenticated attacker could exploit the vulnerability by uploading a specially crafted payload and sending it to the user. The attacker who successfully exploited this vulnerability could then perform actions and run scripts in the security context of the user…

02Affected products

No structured affected-product list available — see references below for vendor advisories.

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

05Technical details

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

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

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

09References

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