CVE-2018-1000528: GONICUS GOsa version before commit 56070d6289d47ba3f5918885954dcceb75606001 contains a Cross Site Scripting (X

This week

MEDIUM 6.1WATCHLISTMITIGATEMITIGATE

CVE-2018-1000528 is a medium-severity flaw (CVSS 6.1) affecting debian linux, gosa. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

GONICUS GOsa version before commit 56070d6289d47ba3f5918885954dcceb75606001 contains a Cross Site Scripting (XSS) vulnerability in change password form (html/password.php, #308) that can result in injection of arbitrary web script or HTML. This attack appear to be exploitable via the victim must open a specially crafted web page. This vulnerability appears to have been fixed in after commit 56070d6289d47ba3f5918885954dcceb75606001.

Why this priority

EPSS top 1%: very likely to be exploited
On your watchlist

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	46.6% (top 1%)
CISA exploited list	No
Weakness	CWE-79
Published	2018-06-26
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: debian · gonicus

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

Am I affected?

Timeline

2018-06-26 16:29 UTCPublished CVE record published
2026-06-17 01:32 UTCUpdated Record last modified

debian debian linux MITIGATE

Affected: 8.0 · 9.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 8.0

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

gonicus gosa MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

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

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

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-2018-1000528?

debian linux: mitigate or apply the listed mitigation; gosa: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2018-1000528 being exploited?

CVE-2018-1000528 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-2018-1000528 affect?

CVE-2018-1000528 affects debian linux, gosa. Severity is medium (CVSS 6.1). GONICUS GOsa version before commit 56070d6289d47ba3f5918885954dcceb75606001 contains a Cross Site Scripting (XSS) vulnerability in change password form (html/password.php, #308) that can result in injection of arbitrary web script or HTML.

How urgent is CVE-2018-1000528?

Priority 51/100. EPSS top 1%: very likely to be exploited; On your watchlist

Software pages

PHP vulnerabilities · Debian vulnerabilities

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References

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