CVE-2021-29108: high-severity vulnerability in Esri Portal for ArcGIS
There is an privilege escalation vulnerability in organization-specific logins in Esri Portal for ArcGIS versions 10.9 and below.
Published · Updated
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.8epss 0.8%
exploitation probability
0.8%top 43% of all CVEs
observed exploitation
nono source reports it
There is an privilege escalation vulnerability in organization-specific logins in Esri Portal for ArcGIS versions 10.9 and below that may allow a remote, authenticated attacker who is able to intercept and modify a SAML assertion to impersonate another account (XML Signature Wrapping Attack). In addition patching, Esri also strongly recommends as best practice for SAML assertions to be signed and encrypted.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
Esri · Portal for ArcGISRelated CVEs — Esri Portal for ArcGIS
In the same product, most dangerous first.
CVE-2024-25693CRITICALPortal for ArcGIS has a directory traversal vulnerability.EPSS 1.3%CVE-2022-38184HIGHThere is an improper access control vulnerability in Portal for ArcGIS versions 10.8.1EPSS 1.0%CVE-2022-38193MEDIUMCode injection issue in Portal for ArcGIS (10.7.1 and 10.8.1)EPSS 0.9%CVE-2026-13019CRITICALMissing AuthenticationEPSS 0.8%CVE-2022-38203HIGHThe allowedProxyHosts property is not fully honored in ArcGIS Enterprise (10.8.1 and 10.7.1 only)EPSS 0.8%CVE-2021-29109MEDIUMA reflected XSS vulnerability in Esri Portal for ArcGIS version 10.9.EPSS 0.7%