CVE-2015-4677: Cross-site request forgery (CSRF) vulnerability in FiverrScript (aka Fiverr Script) 7.2 allows remote attacker

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MEDIUM 6.8DOWNGRADE

CVE-2015-4677 is a medium-severity flaw (CVSS 6.8) affecting fiverrscript. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site request forgery (CSRF) vulnerability in FiverrScript (aka Fiverr Script) 7.2 allows remote attackers to hijack the authentication of administrators for requests that create a new admin via a request to administrator/admins_create.php.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	6.8 (Medium)
EPSS exploit chance	1.1% (top 35%)
CISA exploited list	No
Weakness	CWE-352
Published	2015-06-19
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: fiverrscript

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

Am I affected?

Timeline

2015-06-19 14:59 UTCPublished CVE record published
2026-06-17 00:27 UTCUpdated Record last modified

fiverrscript fiverrscript DOWNGRADE

Affected: 7.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 7.2

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 7.2 (Debian / Ubuntu)

apt-cache madison fiverrscript sudo apt install fiverrscript=<VERSION_BEFORE_7.2> sudo apt-mark hold fiverrscript

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

dnf --showduplicates list fiverrscript sudo dnf downgrade fiverrscript-<VERSION_BEFORE_7.2> sudo dnf versionlock add fiverrscript

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.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: FiverrScript - Cross-Site Request Forgery (Add Admin)

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-2015-4677?

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

Is CVE-2015-4677 being exploited?

CVE-2015-4677 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-2015-4677 affect?

CVE-2015-4677 affects fiverrscript. Severity is medium (CVSS 6.8). Cross-site request forgery (CSRF) vulnerability in FiverrScript (aka Fiverr Script) 7.2 allows remote attackers to hijack the authentication of administrators for requests that create a new admin via a request to administrator/admins_create

How urgent is CVE-2015-4677?

Priority 45/100. Public exploit reference

Software pages

PHP vulnerabilities

References

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