CVE-2018-8770: Physical path Leakage exists in Western Bridge Cobub Razor 0.8.0 via generate.php, controllers/getConfigTest.p

This week

MEDIUM 5.3REMOTEDOWNGRADE

CVE-2018-8770 is a medium-severity flaw (CVSS 5.3) affecting razor. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Physical path Leakage exists in Western Bridge Cobub Razor 0.8.0 via generate.php, controllers/getConfigTest.php, controllers/getUpdateTest.php, controllers/postclientdataTest.php, controllers/posterrorTest.php, controllers/posteventTest.php, controllers/posttagTest.php, controllers/postusinglogTest.php, fixtures/Controller_fixt.php, fixtures/Controller_fixt2.php, fixtures/view_fixt2.php, libs/ipTest.php, or models/commonDbfix.php in tests/.

Why this priority

EPSS top 1%: very likely to be exploited
Public exploit reference
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	59.2% (top 1%)
CISA exploited list	No
Weakness	CWE-200
Published	2018-03-18
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: cobub

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

Am I affected?

Timeline

2018-03-18 06:29 UTCPublished CVE record published
2026-06-17 02:05 UTCUpdated Record last modified

cobub razor DOWNGRADE

Affected: 0.8.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.8.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 0.8.0 (Debian / Ubuntu)

apt-cache madison razor sudo apt install razor=<VERSION_BEFORE_0.8.0> sudo apt-mark hold razor

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

dnf --showduplicates list razor sudo dnf downgrade razor-<VERSION_BEFORE_0.8.0> sudo dnf versionlock add razor

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: Cobub Razor 0.8.0 - Physical Path Leakage
Nuclei scan template: Cobub Razor 0.8.0 - Information Disclosure

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-2018-8770?

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

Is CVE-2018-8770 being exploited?

CVE-2018-8770 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-2018-8770 affect?

CVE-2018-8770 affects razor. Severity is medium (CVSS 5.3). Physical path Leakage exists in Western Bridge Cobub Razor 0.8.0 via generate.php, controllers/getConfigTest.php, controllers/getUpdateTest.php, controllers/postclientdataTest.php, controllers/posterrorTest.php, controllers/posteventTest.ph

How urgent is CVE-2018-8770?

Priority 53/100. EPSS top 1%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

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References

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