Quick Flag Security & Risk Analysis

wordpress.org/plugins/quick-flag

Resolves IP address to ISO 3166-1 alpha-2 two-letter country code and name and displays country flag image if required.

100 active installs v2.12 PHP + WP 3.0+ Updated Aug 2, 2019
geolocationip-to-countryip2country
85
A · Safe
CVEs total0
Unpatched0
Last CVENever
Safety Verdict

Is Quick Flag Safe to Use in 2026?

Generally Safe

Score 85/100

Quick Flag has no known CVEs and is actively maintained. It's a solid choice for most WordPress installations.

No known CVEs Updated 6yr ago
Risk Assessment

The quick-flag plugin v2.12 exhibits a mixed security posture. While it has a very small attack surface and no recorded vulnerability history, suggesting it may be well-maintained or less complex, the static analysis reveals several concerning patterns. A significant portion of SQL queries are not using prepared statements, and a concerningly low percentage of output is properly escaped. The taint analysis is particularly worrying, indicating two flows with unsanitized paths classified as high severity. This suggests potential for injection vulnerabilities if these flows are exposed through an entry point.

Although there are no reported CVEs, the presence of high-severity taint flows without proper sanitization is a significant red flag. The lack of nonce and capability checks, combined with a shortcode as the sole entry point that doesn't appear to have explicit authorization checks in the static analysis, increases the risk of these unsanitized paths being exploited. The plugin's strengths lie in its limited attack surface and clean vulnerability history, but these are overshadowed by the critical code-level weaknesses identified in the static analysis, particularly regarding data sanitization and SQL query practices.

Key Concerns

  • High severity taint flow with unsanitized path (x2)
  • SQL queries not using prepared statements (89% un-prepared)
  • Low output escaping percentage (38%)
  • Missing nonce checks
  • Missing capability checks
Vulnerabilities
None known

Quick Flag Security Vulnerabilities

No known vulnerabilities — this is a good sign.
Version History

Quick Flag Release Timeline

v2.12Current
Code Analysis
Analyzed Mar 16, 2026

Quick Flag Code Analysis

Dangerous Functions
0
Raw SQL Queries
8
1 prepared
Unescaped Output
10
6 escaped
Nonce Checks
0
Capability Checks
0
File Operations
4
External Requests
2
Bundled Libraries
0

SQL Query Safety

11% prepared9 total queries

Output Escaping

38% escaped16 total outputs
Data Flows · Security
2 unsanitized

Data Flow Analysis

2 flows2 with unsanitized paths
get_info (quick-flag.php:122)
Source (user input) Sink (dangerous op) Sanitizer Transform Unsanitized Sanitized
Attack Surface

Quick Flag Attack Surface

Entry Points1
Unprotected0

Shortcodes 1

[quick-flag] quick-flag.php:80
WordPress Hooks 7
actionplugins_loadedquick-flag.php:73
filterplugin_row_metaquick-flag.php:74
actioninitquick-flag.php:75
actionadmin_initquick-flag.php:77
actionadmin_menuquick-flag.php:78
filtercron_schedulesquick-flag.php:84
filterplugin_action_linksquick-flag.php:265
Maintenance & Trust

Quick Flag Maintenance & Trust

Maintenance Signals

WordPress version tested3.4.2
Last updatedAug 2, 2019
PHP min version
Downloads16K

Community Trust

Rating100/100
Number of ratings3
Active installs100
Developer Profile

Quick Flag Developer Profile

Marko-M

2 plugins · 130 total installs

84
trust score
Avg Security Score
85/100
Avg Patch Time
30 days
View full developer profile
Detection Fingerprints

How We Detect Quick Flag

Patterns used to identify this plugin on WordPress sites during automated security audits and web crawling.

Asset Fingerprints

Asset Paths
/wp-content/plugins/quick-flag/css/quick-flag-admin.css/wp-content/plugins/quick-flag/js/quick-flag-admin.js/wp-content/plugins/quick-flag/img/flags/AD.gif/wp-content/plugins/quick-flag/img/flags/AE.gif/wp-content/plugins/quick-flag/img/flags/AF.gif/wp-content/plugins/quick-flag/img/flags/AG.gif/wp-content/plugins/quick-flag/img/flags/AI.gif/wp-content/plugins/quick-flag/img/flags/AL.gif+238 more
Script Paths
/wp-content/plugins/quick-flag/js/quick-flag-admin.js

HTML / DOM Fingerprints

CSS Classes
quick-flag
Shortcode Output
IP address not found inside database.
FAQ

Frequently Asked Questions about Quick Flag