CVE-2018-18087: The Bixie Portfolio plugin 1.2.0 for Pagekit has XSS: a logged-in user who has the "Manage portfolio" privileg

Routine

MEDIUM 5.4DOWNGRADE

CVE-2018-18087 is a medium-severity flaw (CVSS 5.4) affecting portfolio. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Bixie Portfolio plugin 1.2.0 for Pagekit has XSS: a logged-in user who has the "Manage portfolio" privilege can inject arbitrary web script or HTML via the Image URL field in the portfolio editor. The vulnerability is triggered by visiting /portfolio/${project_title}.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.7% (top 47%)
CISA exploited list	No
Weakness	CWE-79
Published	2018-10-09
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: bixie

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

Am I affected?

Timeline

2018-10-09 20:29 UTCPublished CVE record published
2026-06-17 01:46 UTCUpdated Record last modified

bixie portfolio DOWNGRADE

Affected: 1.2.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.2.0

1. Check installed version

apt-cache policy portfolio || rpm -q portfolio || portfolio --version

2. No fixed release: DOWNGRADE to a release before 1.2.0 (Debian / Ubuntu)

apt-cache madison portfolio sudo apt install portfolio=<VERSION_BEFORE_1.2.0> sudo apt-mark hold portfolio

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

dnf --showduplicates list portfolio sudo dnf downgrade portfolio-<VERSION_BEFORE_1.2.0> sudo dnf versionlock add portfolio

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-2018-18087?

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

Is CVE-2018-18087 being exploited?

CVE-2018-18087 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-2018-18087 affect?

CVE-2018-18087 affects portfolio. Severity is medium (CVSS 5.4). The Bixie Portfolio plugin 1.2.0 for Pagekit has XSS: a logged-in user who has the "Manage portfolio" privilege can inject arbitrary web script or HTML via the Image URL field in the portfolio editor. The vulnerability is triggered by visit

How urgent is CVE-2018-18087?

Priority 37/100. Public exploit reference

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References

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