First question here, but thankfully I'm relatively familiar with Stack Exchange so hopefully this question should be a good fit for the site.
There are multiple passages in the letters of Paul that don't seem to make sense in light of the rest of Scripture (mainly those that appear to be derogatory against women, primarily 1 Timothy 2:11-15 - contrast this with Genesis 21:9-12, Judges 4:4-5, and Acts 18:26 and you'll see part of where I'm coming from). I clearly see that Paul's writings were considered Scripture by his contemporaries (or at the very least, some of them were), and assuming I'm not misunderstanding the passages, I also find it hard to believe that Paul would write something like this given the fact that he was highly educated and would likely have known about the OT passages that I referenced above.
One possible explanation for these anomalous passages (again, assuming I'm understanding them properly) is that they aren't entirely authentic. Paul himself warns about people attempting to write inauthentic letters as if from the apostles (2 Thessalonians 2:1-2), so considering Paul's high level of merit and authority in the church, his writings would possibly have been a prime target for malicious modification. Perhaps one or more of his letters were intercepted, modified, and then passed on.
Is there any evidence in history that would point to this hypothesis being possibly accurate? For instance, an ancient manuscript containing modified passages from the known letters of Paul? Any form of evidence would be a valid answer for this question, this is simply an example.
(Note: This question is not about whether or not my interpretation of the referenced Pauline scriptures is accurate or not - as I understand it, that would be off-topic for Stack Exchange in general as it would be opinion-based. I'm interested only in evidence (or the lack thereof) that the letters of Paul that we have today may have been tampered with.)