CVE-2017-6489: Multiple Cross-Site Scripting (XSS) issues were discovered in EPESI 1.8.1.1

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MEDIUM 6.1DOWNGRADE

CVE-2017-6489 is a medium-severity flaw (CVSS 6.1) affecting epesi. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple Cross-Site Scripting (XSS) issues were discovered in EPESI 1.8.1.1. The vulnerabilities exist due to insufficient filtration of user-supplied data (element, state, cat, id, cid) passed to the EPESI-master/modules/Utils/Watchdog/subscribe.php URL. An attacker could execute arbitrary HTML and script code in a browser in the context of the vulnerable website.

Why this priority

Public exploit reference

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	0.8% (top 44%)
CISA exploited list	No
Weakness	CWE-79
Published	2017-03-05
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: epesi

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

Am I affected?

Timeline

2017-03-05 20:59 UTCPublished CVE record published
2026-06-17 01:22 UTCUpdated Record last modified

epesi epesi DOWNGRADE

Affected: 1.8.1.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.8.1.1

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.8.1.1 (Debian / Ubuntu)

apt-cache madison epesi sudo apt install epesi=<VERSION_BEFORE_1.8.1.1> sudo apt-mark hold epesi

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

dnf --showduplicates list epesi sudo dnf downgrade epesi-<VERSION_BEFORE_1.8.1.1> sudo dnf versionlock add epesi

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-2017-6489?

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

Is CVE-2017-6489 being exploited?

CVE-2017-6489 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-2017-6489 affect?

CVE-2017-6489 affects epesi. Severity is medium (CVSS 6.1). Multiple Cross-Site Scripting (XSS) issues were discovered in EPESI 1.8.1.1. The vulnerabilities exist due to insufficient filtration of user-supplied data (element, state, cat, id, cid) passed to the EPESI-master/modules/Utils/Watchdog/sub

How urgent is CVE-2017-6489?

Priority 40/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2017-9624 MEDIUM 6.1 UPGRADE Multiple cross-site scripting (XSS) vulnerabilities in Telaxus/EPESI 1.8.2 and earlier allow remote attackers
CVE-2017-9623 MEDIUM 6.1 UPGRADE Multiple cross-site scripting (XSS) vulnerabilities in Telaxus/EPESI 1.8.2 and earlier allow remote attackers
CVE-2017-9622 MEDIUM 6.1 UPGRADE Multiple cross-site scripting (XSS) vulnerabilities in Telaxus/EPESI 1.8.2 and earlier allow remote attackers
CVE-2017-9621 MEDIUM 6.1 UPGRADE Cross-site scripting (XSS) vulnerability in modules/Base/Lang/Administrator/update_translation.php in EPESI in
CVE-2017-9366 MEDIUM 4.8 UPGRADE Telaxus EPESI 1.8.2 and earlier has a Stored Cross-site Scripting (XSS) vulnerability in modules/Base/Dashboar

References

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