CVE-2019-17495
A Cascading Style Sheets (CSS) injection vulnerability in Swagger UI before 3.23.11 allows attackers to use the Relative Path Overwrite (RPO) technique to perform CSS-based input field value exfiltration, such as exfiltration of a CSRF token value.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (5.73%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A Cascading Style Sheets (CSS) injection vulnerability in Swagger UI before 3.23.11 allows attackers to use the Relative Path Overwrite (RPO) technique to perform CSS-based input field value exfiltration, such as exfiltration of a CSRF token value. In other words, this product intentionally allows the embedding of untrusted JSON data from remote servers, but it was not previously known that <style>@import within the JSON data was a functional attack method.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 5.73% probability · 93th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-352
- Affected
- smartbear/swagger ui · oracle/banking apis · oracle/banking digital experience · oracle/banking platform · oracle/primavera gateway · oracle/utilities framework
- Source
- cve@mitre.org
EPSS 5.7% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/swagger-api/swagger-ui/releases/tag/v3.23.11Release Notes
- https://github.com/tarantula-team/CSS-injection-in-Swagger-UIExploit, Third Party Advisory
- https://lists.apache.org/thread.html/r103579b01da2d0aa0f672b88f811224bbf8ef493aaad845895955e91%40%3Ccommits.airflow.apache.org%3E
- https://lists.apache.org/thread.html/r3acb7e494cf1aab99b6784b7c5bbddfd0d4f8a484ab534c3a61ef9cf%40%3Ccommits.airflow.apache.org%3E
- https://lists.apache.org/thread.html/r84b327f7a8b6b28857b906c07a66dd98e1d341191fa8d7816514ef96%40%3Ccommits.airflow.apache.org%3E
- https://lists.apache.org/thread.html/r853ffeb915a400f899de78124d4e0d77a19379d2e11bf8f4e98c624f%40%3Ccommits.airflow.apache.org%3E
- https://lists.apache.org/thread.html/ref70b940c4f69560d29d6ba792d6c82865e74de3dcad4c92d99b1f8f%40%3Ccommits.airflow.apache.org%3E
- https://www.oracle.com/security-alerts/cpuApr2021.htmlPatch, Third Party Advisory
- https://www.oracle.com/security-alerts/cpujan2022.htmlPatch, Third Party Advisory
- https://www.oracle.com/security-alerts/cpujul2022.html
- https://www.oracle.com/security-alerts/cpuoct2020.htmlPatch, Third Party Advisory
- https://github.com/swagger-api/swagger-ui/releases/tag/v3.23.11Release Notes
- https://github.com/tarantula-team/CSS-injection-in-Swagger-UIExploit, Third Party Advisory
- https://lists.apache.org/thread.html/r103579b01da2d0aa0f672b88f811224bbf8ef493aaad845895955e91%40%3Ccommits.airflow.apache.org%3E
- https://lists.apache.org/thread.html/r3acb7e494cf1aab99b6784b7c5bbddfd0d4f8a484ab534c3a61ef9cf%40%3Ccommits.airflow.apache.org%3E
- https://lists.apache.org/thread.html/r84b327f7a8b6b28857b906c07a66dd98e1d341191fa8d7816514ef96%40%3Ccommits.airflow.apache.org%3E
- https://lists.apache.org/thread.html/r853ffeb915a400f899de78124d4e0d77a19379d2e11bf8f4e98c624f%40%3Ccommits.airflow.apache.org%3E
- https://lists.apache.org/thread.html/ref70b940c4f69560d29d6ba792d6c82865e74de3dcad4c92d99b1f8f%40%3Ccommits.airflow.apache.org%3E
- https://www.oracle.com/security-alerts/cpuApr2021.htmlPatch, Third Party Advisory
- https://www.oracle.com/security-alerts/cpujan2022.htmlPatch, Third Party Advisory
- https://www.oracle.com/security-alerts/cpujul2022.html
- https://www.oracle.com/security-alerts/cpuoct2020.htmlPatch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.