CVE-2020-8521: SQL injection with start and length parameters in Records.php for phpzag live add edit delete data tables reco

This week

CRITICAL 9.8REMOTEMITIGATE

CVE-2020-8521 is a critical-severity flaw (CVSS 9.8) affecting phpzag. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

SQL injection with start and length parameters in Records.php for phpzag live add edit delete data tables records with ajax php mysql

Why this priority

Critical 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	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.4% (top 27%)
CISA exploited list	No
Weakness	CWE-89
Published	2020-07-07
Last modified	2026-06-17

Publisher (CNA): Larry Cashdollar · Vendor: phpzag

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

Am I affected?

Timeline

2020-07-07 20:15 UTCPublished CVE record published
2026-06-17 03:26 UTCUpdated Record last modified

phpzag phpzag MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy phpzag || rpm -q phpzag || phpzag --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

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-2020-8521?

phpzag: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2020-8521 being exploited?

CVE-2020-8521 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-2020-8521 affect?

CVE-2020-8521 affects phpzag. Severity is critical (CVSS 9.8). SQL injection with start and length parameters in Records.php for phpzag live add edit delete data tables records with ajax php mysql

How urgent is CVE-2020-8521?

Priority 62/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities · MySQL vulnerabilities

Related CVEs

CVE-2020-8520 CRITICAL 9.8 MITIGATE SQL injection in order and column parameters in Records.php for phpzag live add edit delete data tables record
CVE-2020-8519 CRITICAL 9.8 MITIGATE SQL injection with the search parameter in Records.php for phpzag live add edit delete data tables records wit

References

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