CVE-2015-8247: Cross-site scripting (XSS) vulnerability in synnefoclient in Synnefo Internet Management Software (IMS) 2015 a

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MEDIUM 4.3DOWNGRADE

CVE-2015-8247 is a medium-severity flaw (CVSS 4.3) affecting internet management software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in synnefoclient in Synnefo Internet Management Software (IMS) 2015 allows remote attackers to inject arbitrary web script or HTML via the plan_name parameter to packagehistory/listusagesdata.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	1.9% (top 20%)
CISA exploited list	No
Weakness	CWE-79
Published	2015-12-15
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: synnefoims

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

Am I affected?

Timeline

2015-12-15 21:59 UTCPublished CVE record published
2026-06-17 00:34 UTCUpdated Record last modified

synnefoims internet management software DOWNGRADE

Affected: 2015

Fixed in: no fixed release known

Safe to downgrade to: a release before 2015

1. Check installed version

apt-cache policy internet-management-software || rpm -q internet-management-software || internet-management-software --version

2. No fixed release: DOWNGRADE to a release before 2015 (Debian / Ubuntu)

apt-cache madison internet-management-software sudo apt install internet-management-software=<VERSION_BEFORE_2015> sudo apt-mark hold internet-management-software

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

dnf --showduplicates list internet-management-software sudo dnf downgrade internet-management-software-<VERSION_BEFORE_2015> sudo dnf versionlock add internet-management-software

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-2015-8247?

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

Is CVE-2015-8247 being exploited?

CVE-2015-8247 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-2015-8247 affect?

CVE-2015-8247 affects internet management software. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in synnefoclient in Synnefo Internet Management Software (IMS) 2015 allows remote attackers to inject arbitrary web script or HTML via the plan_name parameter to packagehistory/listusagesdata.

How urgent is CVE-2015-8247?

Priority 40/100. Public exploit reference

References

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