CVE-2018-6587: CA API Developer Portal 3.5 up to and including 3.5 CR6 has a reflected cross-site scripting vulnerability rel

Routine

MEDIUM 6.1DOWNGRADE

CVE-2018-6587 is a medium-severity flaw (CVSS 6.1) affecting api developer portal. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

CA API Developer Portal 3.5 up to and including 3.5 CR6 has a reflected cross-site scripting vulnerability related to the widgetID variable.

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.9% (top 41%)
CISA exploited list	No
Weakness	CWE-79
Published	2018-03-29
Last modified	2026-06-17

Publisher (CNA): CA Technologies - A Broadcom Company · Vendor: ca

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2018-03-29 13:29 UTCPublished CVE record published
2026-06-17 02:02 UTCUpdated Record last modified

ca api developer portal DOWNGRADE

Affected: 3.5 · 3.5 cr1 · 3.5 cr2 · 3.5 cr3 · 3.5 cr4 · 3.5 cr5 · 3.5 cr6

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.5

1. Check installed version

apt-cache policy api-developer-portal || rpm -q api-developer-portal || api-developer-portal --version

2. No fixed release: DOWNGRADE to a release before 3.5 (Debian / Ubuntu)

apt-cache madison api-developer-portal sudo apt install api-developer-portal=<VERSION_BEFORE_3.5> sudo apt-mark hold api-developer-portal

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list api-developer-portal sudo dnf downgrade api-developer-portal-<VERSION_BEFORE_3.5> sudo dnf versionlock add api-developer-portal

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2018-6587?

api developer portal: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2018-6587 being exploited?

CVE-2018-6587 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2018-6587 affect?

CVE-2018-6587 affects api developer portal. Severity is medium (CVSS 6.1). CA API Developer Portal 3.5 up to and including 3.5 CR6 has a reflected cross-site scripting vulnerability related to the widgetID variable.

How urgent is CVE-2018-6587?

Priority 36/100. No elevated risk signals yet.

Related CVEs

CVE-2018-6588 MEDIUM 6.1 DOWNGRADE CA API Developer Portal 3.5 up to and including 3.5 CR5 has a reflected cross-site scripting vulnerability rel
CVE-2018-6586 MEDIUM 6.1 DOWNGRADE CA API Developer Portal 3.5 up to and including 3.5 CR6 has a stored cross-site scripting vulnerability relate

References

← Back to latest CVEs