CVE-2014-4540: Cross-site scripting (XSS) vulnerability in oleggo-twitter/twitter_login_form.php in the Oleggo LiveStream plu

Q: How do I fix CVE-2014-4540?

oleggo livestream: upgrade to newer than 0.2.6. Exact commands for each OS are on this page.

Q: Is CVE-2014-4540 being exploited?

CVE-2014-4540 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2014-4540 affect?

CVE-2014-4540 affects oleggo livestream. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in oleggo-twitter/twitter_login_form.php in the Oleggo LiveStream plugin 0.2.6 and earlier for WordPress allows remote attackers to inject arbitrary web script or HTML via the msg parameter.

Q: How urgent is CVE-2014-4540?

Priority 39/100. Public exploit reference

Routine

MEDIUM 4.3UPGRADE

CVE-2014-4540 is a medium-severity flaw (CVSS 4.3) affecting oleggo livestream. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in oleggo-twitter/twitter_login_form.php in the Oleggo LiveStream plugin 0.2.6 and earlier for WordPress allows remote attackers to inject arbitrary web script or HTML via the msg parameter.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	1.6% (top 24%)
CISA exploited list	No
Weakness	CWE-79
Published	2014-07-02
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: oleggo livestream project

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

Am I affected?

Timeline

2014-07-02 18:55 UTCPublished CVE record published
2026-06-17 00:10 UTCUpdated Record last modified

oleggo livestream project oleggo livestream UPGRADE

Affected: <= 0.2.6

Fixed in: newer than 0.2.6

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy oleggo-livestream || rpm -q oleggo-livestream || oleggo-livestream --version

2. UPGRADE to newer than 0.2.6 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade oleggo-livestream

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade oleggo-livestream

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2014-4540?

oleggo livestream: upgrade to newer than 0.2.6. Exact commands for each OS are on this page.

Is CVE-2014-4540 being exploited?

CVE-2014-4540 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-2014-4540 affect?

CVE-2014-4540 affects oleggo livestream. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in oleggo-twitter/twitter_login_form.php in the Oleggo LiveStream plugin 0.2.6 and earlier for WordPress allows remote attackers to inject arbitrary web script or HTML via the msg parameter.

How urgent is CVE-2014-4540?

Priority 39/100. Public exploit reference

Software pages

WordPress vulnerabilities · PHP vulnerabilities

References

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