Security BLOG

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The content management system released several security versions in a month, indicating what operation and maintenance should change.

The content management system released security maintenance versions consecutively within a month, indicating that the operation and maintenance judgment criteria should shift from version numbers to the content of the fixes. This article takes recent *** information as an example: WordPress released three security maintenance versions consecutively in September and October, Joomla released security fixes for both 5.x and 6.x versions at the same time, and three operation and maintenance adjustments can be extracted from them - decide according to the content of the fixes, leave a rollback point for upgrades, and rotate keys and passwords after upgrades.

📅 October 12, 2026 Eye 10

Where do the differences in costs lie between self-built content systems and pay-as-you-go cloud services?

Self-built content system and pay-as-you-go Headless cloud services, the main cost difference lies in the four items of servers, request volume, integration expansion, and operation and maintenance personnel. Self-building on a small scale is usually more cost-effective, while maintenance and personnel become the main expenses as the scale increases; Headless deploys the front-end to the edge, retrieves content by interface, eliminates server-side rendering for each request, but introduces interface call billing. This article compares the four items and provides a comparison with self-hosting.

📅 October 12, 2026 👁️ 12

What can unlogged-in users read, where are the permission boundaries of the content system likely to leak?

What can unlogged users read depends on where the permission boundary is drawn. Most unauthorized access is not in the main article itself, but in附属 data, interface lists, and preview entries: comments, attachments, and draft previews all have their own visibility. This article explains the three most easily overlooked positions and the methods of closing with in-station user group permissions, document status, and default closure of high-risk interfaces.

📅 October 12, 2026 👁️ 9

Injections can also be hidden in exported files, where can the prevention of second-order SQL injection be found?

The characteristic of second-order injection is delayed execution: the malicious content appears harmless when written for the first time, but triggers only when it is consumed as a statement during export, import, or reindexing. This article takes the second-order SQL injection in the WXR export fixed in WordPress 7.1.3 as an example to explain the difference between first-order and second-order injection, why export becomes a delivery channel, and where protection should be placed in the steps of writing, storing, and consuming, as well as the checks that need to be added to the backup and recovery process.

📅 October 12, 2026 👁️ 9

The XSS triggered when the comment is opened in the background, where should the content system prevent it?

Some cross-site scripting attacks are not triggered on the front end, but are executed when administrators open pending comments on the backend. This type of vulnerability has a completely different protection location than the front end. This article takes the recently fixed WordPress 7.1.3 comment management page stored XSS as an example, explaining why the secondary context is an independent attack surface, why input filtering is not enough, and the three layers of protection that need to be done on the backend: output escaping, permission boundaries, and content review.

📅 October 12, 2026 👁️ 12

When old versions only patch security vulnerabilities, should we wait for the main branch to upgrade features?

The security patch and feature upgrade follow two timelines. Taking the recent WordPress 7.1.3 as an example, the official has patched the security fixes back to the old branches that still qualify, while reminding that only the latest version is actively supported. This article explains the difference between active support and security support levels, why feature improvements have to wait for the main branch, and what order to judge when arranging the upgrade timeline for the site.

📅 October 12, 2026 👁️ 11

After the crawling behavior is divided into several categories, how should the site's release rules be adjusted accordingly.

Divide the automated capture into three layers according to behavior - for subsequent answer collection and indexing, for model training capture, and for replacing users to fetch pages in real time, the benefits and costs of the three types are completely different. This article explains why domain-based access is not enough, how the access rules should be layered, and why the robots only expressing intention determines that it must be used in conjunction with content-side protection.

📅 October 12, 2026 👁️ 9

Is llms.txt a mandatory standard? What will sites lose if they do not perform this step?

llms.txt is not a mandatory standard, but a community proposal still under discussion: the file is written in Markdown for site descriptions and resource lists, with top-level headings being mandatory paragraphs. Not including this file will not trigger any crawling penalties, the cost being that the model will have one less level of navigation when extracting content. This article describes which formats are fixed in the proposal, what can be achieved, and where the automatically generated file is connected in the site.

📅 October 12, 2026 👁️ 9

Which element is measured by LCP in the first screen time, and why are image sites prone to measurement bias?

The LCP is not about whether there is something on the first screen, but rather when the largest image or text block within the viewport finishes rendering. This article explains which elements will enter the candidate, why image websites are prone to measurement bias, and explains how lazy loading, background images, and placeholder images push the candidate elements to the back in three cases, and finally gives the actual impact of server-side rendering and automatic title image matching on the first screen.

📅 October 12, 2026 👁️ 12

Will submitting new addresses in bulk occupy the crawling quota, and how is the rhythm of IndexNow determined?

To submit new addresses in bulk to search engines is just to notify the other party that "there is a change", but the actual crawling still consumes the site's crawling quota. This article explains why submission and crawling are two separate things, what the key file is checked for, why pushing too much at once is actually worse, and provides a method for submitting in batches according to the release rhythm, as well as how to coordinate with scheduled releases for in-site link submissions.

📅 October 12, 2026 👁️ 12