CVE-2019-19381 — oauth/oauth2/v1/saml/ in Abacus OAuth Login 2019_01_r4_20191021_0000 before prio

oauth/oauth2/v1/saml/ in Abacus OAuth Login 2019_01_r4_20191021_0000 before prior to R4 (20.11.2019 Hotfix) allows Reflected Cross Site Scripting (XSS) via an error message.

01What is this vulnerability?

oauth/oauth2/v1/saml/ in Abacus OAuth Login 2019_01_r4_20191021_0000 before prior to R4 (20.11.2019 Hotfix) allows Reflected Cross Site Scripting (XSS) via an error message.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

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

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

• Published: 2020-03-11T13:02:38.000Z
• Last modified: 2024-08-05T02:16:47.075Z

09References

• www.compass-security.com — https://www.compass-security.com/en/research/advisories/
• www.compass-security.com — https://www.compass-security.com/fileadmin/Datein/Research/Advisories/CSNC-2019-…