CVE-2019-17557
Cross-site scripting in Apache Syncome EndUser
It was found that the Apache Syncope EndUser UI login page prio to 2.0.15 and 2.1.6 reflects the successMessage parameters. By this mean, a user accessing the Enduser UI could execute javascript code from URL query string.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
It was found that the Apache Syncope EndUser UI login page prio to 2.0.15 and 2.1.6 reflects the successMessage parameters. By this mean, a user accessing the Enduser UI could execute javascript code from URL query string.
- Record
CVE-2019-17557- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 3.5 Low
AV:N/AC:M/Au:S/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
It was found that the Apache Syncope EndUser UI login page prio to 2.0.15 and 2.1.6 reflects the successMessage parameters. By this mean, a user accessing the Enduser UI could execute javascript code from URL query string.
- Record
CVE-2019-17557- Updated
- 2026-11-02
EUVDEUVD-2022-0485 No score
It was found that the Apache Syncope EndUser UI login page prio to 2.0.15 and 2.1.6 reflects the successMessage parameters. By this mean, a user accessing the Enduser UI could execute javascript code from URL query string.
- Record
EUVD-2022-0485- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-6qj8-c27w-rp33
Cross-site scripting in Apache Syncome EndUser
It was found that the Apache Syncope EndUser UI login page prio to 2.0.15 and 2.1.6 reflects the successMessage parameters. By this mean, a user accessing the Enduser UI could execute javascript code from URL query string.
- Record
GHSA-6qj8-c27w-rp33- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
OSV
It was found that the Apache Syncope EndUser UI login page prio to 2.0.15 and 2.1.6 reflects the successMessage parameters. By this mean, a user accessing the Enduser UI could execute javascript code from URL query string.
- Record
CVE-2019-17557- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
OSVGHSA-6qj8-c27w-rp33
Cross-site scripting in Apache Syncome EndUser
It was found that the Apache Syncope EndUser UI login page prio to 2.0.15 and 2.1.6 reflects the successMessage parameters. By this mean, a user accessing the Enduser UI could execute javascript code from URL query string.
- Record
GHSA-6qj8-c27w-rp33- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
org.apache.syncope.client:syncope-client-enduserMaven |
before 2.0.15 | 2.0.15 |
org.apache.syncope.client:syncope-client-enduserMaven |
2.1.0 up to 2.1.6 | 2.1.6 |
org.apache.syncope.client:syncope-client-enduserMaven |
before 2.0.15, plus listed versions 2.0.02.0.0-M12.0.0-M22.0.0-M32.0.0-M4 Show 15 moreShow less2.0.0.M52.0.12.0.102.0.112.0.122.0.132.0.142.0.22.0.32.0.42.0.52.0.62.0.72.0.82.0.9 |
2.0.15 |
org.apache.syncope.client:syncope-client-enduserMaven |
2.1.0 up to 2.1.6, plus listed versions 2.1.12.1.22.1.32.1.42.1.5 |
2.1.6 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, products | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2019-17557 is a medium vulnerability (CVSS 5.4) in Apache Syncope, published May 4, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.23%, the 69th percentile. Fixed in org.apache.syncope.client:syncope-client-enduser 2.0.15.