CVE-2013-2778: Cross-site request forgery (CSRF) vulnerability in addressbook/register/delete_user.php in PHP Address Book 8.

Routine

HIGH 7.5DOWNGRADE

CVE-2013-2778 is a high-severity flaw (CVSS 7.5) affecting php address book. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site request forgery (CSRF) vulnerability in addressbook/register/delete_user.php in PHP Address Book 8.2.5 allows remote attackers to hijack the authentication of administrators for requests that delete accounts, a different vulnerability than CVE-2013-0135.1.

Why this priority

High severity

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

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	0.6% (top 50%)
CISA exploited list	No
Weakness	CWE-352
Published	2013-04-09
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: chatelao

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2013-04-09 03:34 UTCPublished CVE record published
2026-06-16 23:53 UTCUpdated Record last modified

chatelao php address book DOWNGRADE

Affected: 8.2.5

Fixed in: no fixed release known

Safe to downgrade to: a release before 8.2.5

1. Check installed version

apt-cache policy php-address-book || rpm -q php-address-book || php-address-book --version

2. No fixed release: DOWNGRADE to a release before 8.2.5 (Debian / Ubuntu)

apt-cache madison php-address-book sudo apt install php-address-book=<VERSION_BEFORE_8.2.5> sudo apt-mark hold php-address-book

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

dnf --showduplicates list php-address-book sudo dnf downgrade php-address-book-<VERSION_BEFORE_8.2.5> sudo dnf versionlock add php-address-book

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-2013-2778?

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

Is CVE-2013-2778 being exploited?

CVE-2013-2778 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-2013-2778 affect?

CVE-2013-2778 affects php address book. Severity is high (CVSS 7.5). Cross-site request forgery (CSRF) vulnerability in addressbook/register/delete_user.php in PHP Address Book 8.2.5 allows remote attackers to hijack the authentication of administrators for requests that delete accounts, a different vulnerab

How urgent is CVE-2013-2778?

Priority 39/100. High severity

Software pages

PHP vulnerabilities

Related CVEs

CVE-2013-1749 MEDIUM 4.3 DOWNGRADE Cross-site scripting (XSS) vulnerability in edit.php in PHP Address Book 8.2.5 allows user-assisted remote att
CVE-2013-1748 HIGH 7.5 DOWNGRADE Multiple SQL injection vulnerabilities in PHP Address Book 8.2.5 allow remote attackers to execute arbitrary S
CVE-2013-0135 HIGH 7.5 DOWNGRADE Multiple SQL injection vulnerabilities in PHP Address Book 8.2.5 allow remote attackers to execute arbitrary S
CVE-2012-1912 MEDIUM 4.3 UPGRADE Cross-site scripting (XSS) vulnerability in preferences.php in PHP Address Book 7.0 and earlier allows remote
CVE-2012-1911 HIGH 7.5 UPGRADE Multiple SQL injection vulnerabilities in PHP Address Book 6.2.12 and earlier allow remote attackers to execut

References

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