CVE-2018-11443: The parameter q is affected by Cross-site Scripting in jobcard-ongoing.php in EasyService Billing 1.0.

This month

MEDIUM 6.1DOWNGRADE

CVE-2018-11443 is a medium-severity flaw (CVSS 6.1) affecting easyservice billing. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The parameter q is affected by Cross-site Scripting in jobcard-ongoing.php in EasyService Billing 1.0.

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	2.6% (top 14%)
CISA exploited list	No
Weakness	CWE-79
Published	2018-05-25
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: easyservice billing project

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

Am I affected?

Timeline

2018-05-25 12:29 UTCPublished CVE record published
2026-06-17 01:35 UTCUpdated Record last modified

easyservice billing project easyservice billing DOWNGRADE

Affected: 1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0

1. Check installed version

apt-cache policy easyservice-billing || rpm -q easyservice-billing || easyservice-billing --version

2. No fixed release: DOWNGRADE to a release before 1.0 (Debian / Ubuntu)

apt-cache madison easyservice-billing sudo apt install easyservice-billing=<VERSION_BEFORE_1.0> sudo apt-mark hold easyservice-billing

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

dnf --showduplicates list easyservice-billing sudo dnf downgrade easyservice-billing-<VERSION_BEFORE_1.0> sudo dnf versionlock add easyservice-billing

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: EasyService Billing 1.0 - Cross-Site Scripting

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-2018-11443?

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

Is CVE-2018-11443 being exploited?

CVE-2018-11443 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-2018-11443 affect?

CVE-2018-11443 affects easyservice billing. Severity is medium (CVSS 6.1). The parameter q is affected by Cross-site Scripting in jobcard-ongoing.php in EasyService Billing 1.0.

How urgent is CVE-2018-11443?

Priority 48/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2018-11445 HIGH 8.8 DOWNGRADE A CSRF issue was discovered on the User Add/System Settings Page (system-settings-user-new2.php) in EasyServic
CVE-2018-11444 CRITICAL 9.8 DOWNGRADE A SQL Injection issue was observed in the parameter "q" in jobcard-ongoing.php in EasyService Billing 1.0.
CVE-2018-11442 HIGH 8.8 DOWNGRADE A CSRF issue was discovered in EasyService Billing 1.0, which was triggered via a quotation-new3-new2.php?add=

References

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