CVE-2017-12810: PHPJabbers PHP Newsletter Script 4.2 has stored XSS in lists in the admin panel.

Routine

MEDIUM 6.1DOWNGRADE

CVE-2017-12810 is a medium-severity flaw (CVSS 6.1) affecting phpjabbers newsletter script. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

PHPJabbers PHP Newsletter Script 4.2 has stored XSS in lists in the admin panel.

Why this priority

No elevated risk signals yet

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	0.6% (top 50%)
CISA exploited list	No
Weakness	CWE-79
Published	2017-12-30
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: stivasoft

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

Am I affected?

Timeline

2017-12-30 07:29 UTCPublished CVE record published
2026-06-17 01:03 UTCUpdated Record last modified

stivasoft phpjabbers newsletter script DOWNGRADE

Affected: 4.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.2

1. Check installed version

apt-cache policy phpjabbers-newsletter-script || rpm -q phpjabbers-newsletter-script || phpjabbers-newsletter-script --version

2. No fixed release: DOWNGRADE to a release before 4.2 (Debian / Ubuntu)

apt-cache madison phpjabbers-newsletter-script sudo apt install phpjabbers-newsletter-script=<VERSION_BEFORE_4.2> sudo apt-mark hold phpjabbers-newsletter-script

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

dnf --showduplicates list phpjabbers-newsletter-script sudo dnf downgrade phpjabbers-newsletter-script-<VERSION_BEFORE_4.2> sudo dnf versionlock add phpjabbers-newsletter-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-2017-12810?

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

Is CVE-2017-12810 being exploited?

CVE-2017-12810 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-2017-12810 affect?

CVE-2017-12810 affects phpjabbers newsletter script. Severity is medium (CVSS 6.1). PHPJabbers PHP Newsletter Script 4.2 has stored XSS in lists in the admin panel.

How urgent is CVE-2017-12810?

Priority 34/100. No elevated risk signals yet.

Software pages

PHP vulnerabilities

References

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