CVE-2018-16454: PHP Scripts Mall Currency Converter Script 2.0.5 allows remote attackers to cause a denial of service (web-int

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HIGH 7.5REMOTEDOWNGRADE

CVE-2018-16454 is a high-severity flaw (CVSS 7.5) affecting currency converter script. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

PHP Scripts Mall Currency Converter Script 2.0.5 allows remote attackers to cause a denial of service (web-interface change) via an inverted comma.

Why this priority

High severity
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	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.1% (top 34%)
CISA exploited list	No
Weakness	CWE-20
Published	2018-09-07
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: currency converter script project

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

Am I affected?

Timeline

2018-09-07 22:29 UTCPublished CVE record published
2026-06-17 01:44 UTCUpdated Record last modified

currency converter script project currency converter script DOWNGRADE

Affected: 2.0.5

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.0.5

1. Check installed version

apt-cache policy currency-converter-script || rpm -q currency-converter-script || currency-converter-script --version

2. No fixed release: DOWNGRADE to a release before 2.0.5 (Debian / Ubuntu)

apt-cache madison currency-converter-script sudo apt install currency-converter-script=<VERSION_BEFORE_2.0.5> sudo apt-mark hold currency-converter-script

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

dnf --showduplicates list currency-converter-script sudo dnf downgrade currency-converter-script-<VERSION_BEFORE_2.0.5> sudo dnf versionlock add currency-converter-script

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-2018-16454?

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

Is CVE-2018-16454 being exploited?

CVE-2018-16454 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-2018-16454 affect?

CVE-2018-16454 affects currency converter script. Severity is high (CVSS 7.5). PHP Scripts Mall Currency Converter Script 2.0.5 allows remote attackers to cause a denial of service (web-interface change) via an inverted comma.

How urgent is CVE-2018-16454?

Priority 53/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

References

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